Chevy Big Block V8 Exhaust Manifold to Head Gasket 

Manifold to cylinder head gasket.

Replaces Marine Power 0991-600, Osco CW-GH and Mallory 9-61400.

Fits these applications:

• Chevrolet big block V8 427 and 454 C.I.D., all models (aluminum center riser generic).
• Chris-Craft V8 454 C.I.D., all models (center riser generic).
• Crusader V8 427 and 454 C.I.D., all models (center riser generic).
• Crusader V8 454 and 502 C.I.D., all models (direct replacement).
• Indmar V8 427 and 454 C.I.D., all inboard models (center riser generic).
• MerCruiser V8 454 and 502 C.I.D., all models (center riser generic).

Also for use with the Barr Center Riser generic aluminum manifold/riser system.

Compatible parts:

• CHVA-1-84 water cooled center discharge manifold to fit the big block GM engine (3/4" N.P.T. cooling hose connections). All years.
• CHVA-1-92 water cooled center discharge manifold to fit the big block GM engine (3/4" N.P.T. cooling hose connections). All years.
• CR-1-97992 direct replacement starboard side manifold.
• CR-1-97993 direct replacement port side manifold.
• 20-0082 water cooled center discharge riser (3/4" N.P.T. cooling hose connection). Standard for use with 3" I.D. exhaust hose.
• 20-0100 water cooled center discharge riser (3/4" N.P.T. cooling hose connection). Standard for use with 4" I.D. exhaust hose.
• 20-0107 water cooled center discharge riser (3/4" N.P.T. cooling hose connection). Standard for use with 4" I.D. exhaust hose.
• 20-0108 water cooled center discharge riser (3/4" N.P.T. cooling hose connection). Standard for use with 3" I.D. exhaust hose.
• CR-20-96560 direct replacement exhaust elbow assembly, 3" I.D. exhaust hose.
• CR-20-97386 90 degree swivel elbow.
• CR-20-97387 elbow, lower swivel with 3" outlet.
• CR-20-97624 elbow, lower swivel with 4" outlet.
• CR-20-97924 direct replacement exhaust elbow assembly, 4" I.D. exhaust hose.
• CR-20-98068 direct replacement exhaust elbow assembly, 3" I.D. exhaust hose. For use without Crusader spacer part # 97295.
• 20-0097 3" spacer block (complete with mounting hardware, gasket and 3/4" pipe plug). Capable of stacking.
• CR-20-97169 6" riser extension.
• CR-20-97772 4" riser l extension.

Manufactured by Barr Marine. Part number CHVA-47-0000.