MerCruiser Ford V8 302, 351 Log Exhaust Kit with Elbow Risers MC-20-76351 and 3 Inch Spacers 

Complete Barr Marine exhaust kit for the MerCruiser Ford V8 302, 351 (log style). Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (1) MC-1-65604 port and (1) MC-1-65603 starboard MerCruiser Ford V8 302, 351 Exhaust Manifolds. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Port replaces MerCruiser 65604A12, Osco 5604, Mallory 9-40502 and Sierra 18-1958. Starboard replaces MerCruiser 65603A13, Osco 5603, Mallory 9-40501 and Sierra 18-1962.
• (2) MC-20-76351 MerCruiser 4, 6 Cylinder, V8 Log Elbow Riser. Direct replacement exhaust elbow riser. Not pictured. Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 76351A2, Osco 6351, Mallory 9-40558, HGE 6351, Sierra 18-1971 and GLM 51120.
• (1) MC-20-61851A2 MerCruiser V8 Log Spacer Blocks 3 Inch. Manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs. Each spacer block kit includes the spacer block(s) and the corresponding package to mount. Replaces MerCruiser 61851A2, Osco 1851 (single), Mallory 9-40532 and GLM 50330.

Fits MerCruiser V8 (Ford) 302 and 351 C.I.D., Models 188, 215, 225, 233, 255 and 888 inboard and I/O units (log style 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-20-60426 direct replacement exhaust elbow riser (utilizes a stainless steel sleeve at the water/air mixing area).
• MC-20-76771 direct replacement exhaust elbow riser.
• 1-60252 direct replacement exhaust manifold end cap/connector.
• 1-60252P front end plate mounting package.
• MC-1-6560P manifold mounting package.
• MC-20-55730 stainless steel fresh water cooling block off plate for use with MerCruiser riser #''s 60426, 76351 and 76771. Requires (2) gaskets part # MC47-27-52076.
• MC-20-60207 stainless steel block off plate (with vent hole) for use with MerCruiser riser #''s 60426, 76351 and 76771. Requires (2) gaskets part # MC47-2752076.
• MC-20-60426P exhaust riser elbow mounting package. For use with both MC-2060426 and MC-20-76351 risers.
• MC-29-62898 upper thermostat housing.
• MC-29-63588 lower thermostat housing.
• MC47-27-48043 direct replacement exhaust manifold end cap/connector gasket (will fit both ends).
• MC47-27-73866 direct replacement exhaust manifold to head gasket.
• MC47-27-99777-3 direct replacement exhaust elbow to manifold gasket.
• MC-1-52390 direct replacement water cooled exhaust manifold. For serial # 3332138 and up.
• MC-1-58759 direct replacement water cooled manifold to fit the 6 cyl. GM (Model 165) engine.
• MC-1-77234 direct replacement water cooled exhaust manifold (port side).
• MC-1-77235 direct replacement water cooled exhaust manifold (starboard side).
• MC-20-61851A3 manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.
• 1-54870 direct replacement exhaust manifold rear end cap. Serial # 4481625 and below.
• 1-54870P rear end cap mounting package.
• MC-1-52390P exhaust manifold mounting package.
• MC-1-58759P exhaust manifold mounting package.
• MC-1-58764P manifold to carburetor adaptor mounting package.
• MC-1-77234P manifold mounting package.
• MC-27-48104 alternator mounting bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-47587 direct replacement lower thermostat housing.
• MC-29-60372 direct replacement upper thermostat housing.
• MC-29-78984 lower thermostat housing.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-33395A2 exhaust manifold gasket set.
• MC47-27-46401 direct replacement manifold to head gasket.
• MC47-27-52076 direct replacement exhaust elbow to exhaust manifold gasket.
• MC47-27-53354 direct replacement exhaust manifold to cylinder head gasket.
• MC47-27-53354A1 exhaust manifold gasket set.
• MC47-27-73814 direct replacement exhaust manifold end cap gasket. Utilized with 1-73813 rear end cap.
• MC47-488 KIT thermostat kit (includes gasket and thermostat).

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

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