Complete Barr Marine exhaust kit for the MerCruiser V8 330, 340, 454 MAG. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.
Kit includes:
(2) MC-1-89011 MerCruiser V8 330, 340, 454 MAG Center Rise Exhaust Manifold. Direct replacement water cooled exhaust manifold. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 807078A6, Osco 9011, Mallory 9-40506, HGE 9011, Sierra 18-1957 and GLM 51240.
(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 330, 340 and 454 Magnum, inboard and stern drive units (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-20-87918 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.
