MerCruiser - V8 Small Block

Complete Barr Marine exhaust kit for the MerCruiser V8 5.0L, 5.7L, 6.2L (dry joint). Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-865735 MerCruiser V8 5.0L, 5.7L Dry Joint Exhaust Manifold. Direct replacement exhaust manifold. Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances. Replaces MerCruiser 865735A02.
• (2) MC-20-864309 MerCruiser V6, V8 Dry Joint Exhaust Riser 7 Degree. Direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well. Includes all applicable plugs and mounting hardware only. Includes plugs, gasket and mounting hardware to mount to the manifold.

Fits MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-864591 direct t replacement exhaust riser/ elbow.
• CHV-47-0000 manifold to cylinder head gasket.
• MC-20-864309P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC-20-864591P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC47-27-864547 direct replacement restrictor gasket.
• MC47-27-864549 direct replacement restrictor gasket. Direct replacement restrictor gasket.
• MC47-27-864850 direct replacement restrictor gasket.
• MC-1-864612 direct replacement exhaust manifold.
• MC-1-864612P exhaust manifold mounting package. Riser gasket sold seperately.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 5.0L, 5.7L, 6.2L (dry joint). Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-865735 MerCruiser V8 5.0L, 5.7L Dry Joint Exhaust Manifold. Direct replacement exhaust manifold. Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances. Replaces MerCruiser 865735A02.
• (2) MC-20-864309 MerCruiser V6, V8 Dry Joint Exhaust Riser 7 Degree. Direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well. Includes all applicable plugs and mounting hardware only. Includes plugs, gasket and mounting hardware to mount to the manifold.
• (1) MC-20-864929A1 MerCruiser V6, V8 Dry Joint Spacer Kit 9 Inch Bolts. 3"spacer kit (with 9" bolts) for a 7 degree dry joint riser (MC-20-864309) sold in pairs. Mounted between exhaust manifold and exhaust riser. Used with MerCruiser Dry Joint exhaust applications on 350 MAG, 357 MAG, 383 MAG STROKER, 4.3L, 5.0L, 5.7L, and 6.2L engines that use the 7 degree riser.

Fits MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-864591 direct t replacement exhaust riser/ elbow.
• CHV-47-0000 manifold to cylinder head gasket.
• MC-20-864309P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC-20-864591P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC47-27-864547 direct replacement restrictor gasket.
• MC47-27-864549 direct replacement restrictor gasket. Direct replacement restrictor gasket.
• MC47-27-864850 direct replacement restrictor gasket.
• MC-1-864612 direct replacement exhaust manifold.
• MC-1-864612P exhaust manifold mounting package. Riser gasket sold seperately.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 5.0L, 5.7L, 6.2L (dry joint). Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-865735 MerCruiser V8 5.0L, 5.7L Dry Joint Exhaust Manifold. Direct replacement exhaust manifold. Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances. Replaces MerCruiser 865735A02.
• (2) MC-20-864591 MerCruiser V6, V8 Dry Joint Exhaust Riser. Direct t replacement exhaust riser/ elbow. Includes all applicable plugs and mounting hardware only. Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 864591T02.

Fits MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-864309 direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well.
• CHV-47-0000 manifold to cylinder head gasket.
• MC-20-864309P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC-20-864591P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC47-27-864547 direct replacement restrictor gasket.
• MC47-27-864549 direct replacement restrictor gasket. Direct replacement restrictor gasket.
• MC47-27-864850 direct replacement restrictor gasket.
• MC-1-864612 direct replacement exhaust manifold.
• MC-1-864612P exhaust manifold mounting package. Riser gasket sold seperately.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 5.0L, 5.7L, 6.2L (dry joint). Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-865735 MerCruiser V8 5.0L, 5.7L Dry Joint Exhaust Manifold. Direct replacement exhaust manifold. Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances. Replaces MerCruiser 865735A02.
• (2) MC-20-864591 MerCruiser V6, V8 Dry Joint Exhaust Riser. Direct t replacement exhaust riser/ elbow. Includes all applicable plugs and mounting hardware only. Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 864591T02.
• (1) MC-20-865996A3 MerCruiser V6, V8 Dry Joint Spacer Kit 1.7 Inch. Need to purchase additional block of gaskets for close cooled applications. Sold as shown.

Fits MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-864309 direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well.
• CHV-47-0000 manifold to cylinder head gasket.
• MC-20-864309P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC-20-864591P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC47-27-864547 direct replacement restrictor gasket.
• MC47-27-864549 direct replacement restrictor gasket. Direct replacement restrictor gasket.
• MC47-27-864850 direct replacement restrictor gasket.
• MC-1-864612 direct replacement exhaust manifold.
• MC-1-864612P exhaust manifold mounting package. Riser gasket sold seperately.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 5.0L, 5.7L, 6.2L (dry joint). Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-865735 MerCruiser V8 5.0L, 5.7L Dry Joint Exhaust Manifold. Direct replacement exhaust manifold. Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances. Replaces MerCruiser 865735A02.
• (2) MC-20-864591 MerCruiser V6, V8 Dry Joint Exhaust Riser. Direct t replacement exhaust riser/ elbow. Includes all applicable plugs and mounting hardware only. Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 864591T02.
• (1) MC-20-864929A3 MerCruiser V6, V8 Raw Water Dry Joint Spacer Kit. Direct l replacement 3 inch spacer kit. Need to purchase additional block off gaskets for closed cooled applications. Note: When using 7 degree low profile riser part # MC-20-864309 a use spacer mounting package MC-20-864929A1. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications. Sold as shown. Replaces MerCruiser 864929A3.

Fits MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-864309 direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well.
• CHV-47-0000 manifold to cylinder head gasket.
• MC-20-864309P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC-20-864591P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC47-27-864547 direct replacement restrictor gasket.
• MC47-27-864549 direct replacement restrictor gasket. Direct replacement restrictor gasket.
• MC47-27-864850 direct replacement restrictor gasket.
• MC-1-864612 direct replacement exhaust manifold.
• MC-1-864612P exhaust manifold mounting package. Riser gasket sold seperately.
• MC-20-864908A1 direct replacement 6 inch spacer kit. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications.
• MC-20-864908A1P six inch spacer mounting package. Includes all items less the spacers and brackets.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 5.0L, 5.7L, 6.2L (dry joint). Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-865735 MerCruiser V8 5.0L, 5.7L Dry Joint Exhaust Manifold. Direct replacement exhaust manifold. Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances. Replaces MerCruiser 865735A02.
• (2) MC-20-864591 MerCruiser V6, V8 Dry Joint Exhaust Riser. Direct t replacement exhaust riser/ elbow. Includes all applicable plugs and mounting hardware only. Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 864591T02.
• (1) MC-20-864908A1 MerCruiser V6, V8 Dry Joint Spacer Kit 6 Inch. Direct replacement 6 inch spacer kit. Need to purchase additional block off gaskets for closed cooled applications. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications. Sold as shown. Replaces MerCruiser 864908A1.

Fits MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-864309 direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well.
• CHV-47-0000 manifold to cylinder head gasket.
• MC-20-864309P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC-20-864591P exhaust riser mounting package. Includes restrictor gasket for raw water applications.
• MC47-27-864547 direct replacement restrictor gasket.
• MC47-27-864549 direct replacement restrictor gasket. Direct replacement restrictor gasket.
• MC47-27-864850 direct replacement restrictor gasket.
• MC-1-864612 direct replacement exhaust manifold.
• MC-1-864612P exhaust manifold mounting package. Riser gasket sold seperately.
• MC-20-864929A3 direct l replacement 3 inch spacer kit. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications.
• MC-20-864908A1P six inch spacer mounting package. Includes all items less the spacers and brackets.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-98502 MerCruiser V8 Center Riser 3 Inch 0 Degree. Direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 98502A2, Mallory 9-40554 and Sierra 18-1974-1.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• MC-20-93320A3 manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
• MC-20-93322A3 manifold to riser 6" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-98502 MerCruiser V8 Center Riser 3 Inch 0 Degree. Direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 98502A2, Mallory 9-40554 and Sierra 18-1974-1.
• (1) MC-20-93320A3 MerCruiser V6, V8 Riser Spacer Blocks 3 Inch Pair. Manifold to riser 3" spacer blocks (pair) with fastener and gasket package. Each spacer block kit includes the spacer block(s) and the corresponding package to mount. Replaces MerCruiser 807476A6, Osco 3320 (single), HGE 3320-PR and GLM 50310.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• MC-20-93322A3 manifold to riser 6" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC47-27-99757 direct replacement manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-98502 MerCruiser V8 Center Riser 3 Inch 0 Degree. Direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 98502A2, Mallory 9-40554 and Sierra 18-1974-1.
• (1) MC-20-93322A3 MerCruiser V6, V8 Riser Spacer Blocks 6 Inch Pair. Manifold to riser 6" spacer blocks (pair) with fastener and gasket package. Each spacer block kit includes the spacer block(s) and the corresponding package to mount. Replaces MerCruiser 807477A5, Osco 3322 (single) and Mallory 9-40531.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• MC-20-93320A3 manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC47-27-99757 direct replacement manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-98504 MerCruiser V6, V8 Center Riser 3 Inch 15 Degree. Direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 98503A3, Osco 8503A, Mallory 9-40557, Sierra 18-1970-1 and GLM 51110.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-93320A3 manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
• MC-20-93322A3 manifold to riser 6" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC47-27-99757 direct replacement manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-98504 MerCruiser V6, V8 Center Riser 3 Inch 15 Degree. Direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 98503A3, Osco 8503A, Mallory 9-40557, Sierra 18-1970-1 and GLM 51110.
• (1) MC-20-93320A3 MerCruiser V6, V8 Riser Spacer Blocks 3 Inch Pair. Manifold to riser 3" spacer blocks (pair) with fastener and gasket package. Each spacer block kit includes the spacer block(s) and the corresponding package to mount. Replaces MerCruiser 807476A6, Osco 3320 (single), HGE 3320-PR and GLM 50310.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-93322A3 manifold to riser 6" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC47-27-99757 direct replacement manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-98504 MerCruiser V6, V8 Center Riser 3 Inch 15 Degree. Direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 98503A3, Osco 8503A, Mallory 9-40557, Sierra 18-1970-1 and GLM 51110.
• (1) MC-20-93322A3 MerCruiser V6, V8 Riser Spacer Blocks 6 Inch Pair. Manifold to riser 6" spacer blocks (pair) with fastener and gasket package. Each spacer block kit includes the spacer block(s) and the corresponding package to mount. Replaces MerCruiser 807477A5, Osco 3322 (single) and Mallory 9-40531.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-93320A3 manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC47-27-99757 direct replacement manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-44354 MerCruiser V6, V8 Center Riser 4 Inch 8 Degree. Direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 807988A2, Osco 4354, Mallory 9-40559, HGE 4354, Sierra 18-1976-1 and GLM 51140.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• MC-20-93320A3 manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
• MC-20-93322A3 manifold to riser 6" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC47-27-99757 direct replacement manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-44354 MerCruiser V6, V8 Center Riser 4 Inch 8 Degree. Direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 807988A2, Osco 4354, Mallory 9-40559, HGE 4354, Sierra 18-1976-1 and GLM 51140.
• (1) MC-20-93320A3 MerCruiser V6, V8 Riser Spacer Blocks 3 Inch Pair. Manifold to riser 3" spacer blocks (pair) with fastener and gasket package. Each spacer block kit includes the spacer block(s) and the corresponding package to mount. Replaces MerCruiser 807476A6, Osco 3320 (single), HGE 3320-PR and GLM 50310.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• MC-20-93322A3 manifold to riser 6" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC47-27-99757 direct replacement manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.

Complete Barr Marine exhaust kit for the MerCruiser V8 898R, 228R, 260R. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (2) MC-1-87114 MerCruiser V8 898R, 228R, 260R Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 860246A10/87114A19, Osco 7114B2, Mallory 9-40507, HGE 7114, Sierra 18-1953-2 and GLM 51230.
• (2) MC-20-44354 MerCruiser V6, V8 Center Riser 4 Inch 8 Degree. Direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle). Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 807988A2, Osco 4354, Mallory 9-40559, HGE 4354, Sierra 18-1976-1 and GLM 51140.
• (1) MC-20-93322A3 MerCruiser V6, V8 Riser Spacer Blocks 6 Inch Pair. Manifold to riser 6" spacer blocks (pair) with fastener and gasket package. Each spacer block kit includes the spacer block(s) and the corresponding package to mount. Replaces MerCruiser 807477A5, Osco 3322 (single) and Mallory 9-40531.

Fits MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• MC-20-93320A3 manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
• MC-20-44354P mounting package for MC-20-44354 riser.
• MC-20-87918 direct replacement stainless steel block off plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-20-98504P mounting package for MC-20-98504 riser (includes gaskets, drain plug, pipe plug, stainless steel restrictor plate and fasteners).
• MC-20-99208 direct replacement stainless steel restrictor plate for use with MerCruiser riser #''s 98502, 98504 and 44354. Requires (2) gaskets part # MC47-27-41813.
• MC-27-93175 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-87290 lower thermostat housing.
• MC-50-806926 replacement 3/4" N.P.T. X 1" hose fitting (90 degree)/brass drain cock.
• MC-50-87238 exhaust manifold drain cock.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-41811 direct replacement restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).
• MC47-27-41813 direct replacement restrictor gasket.
• MC47-27-87105 direct replacement exhaust elbow gasket.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-27-47487 alternator bracket.
• MC-29-47442 upper thermostat housing.
• MC-29-90736 lower thermostat housing.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC47-27-99757 direct replacement manifold to head gasket.

Composite kit picture shown is for reference only. See list of included parts above in the description.