Chevy Big Block V8 Cast Iron Center Riser Exhaust Manifold 

Water cooled center discharge manifold to fit the big block GM engine (3/4" N.P.T. cooling hose connections). All years.

Replaces Marine Power 0991-110, Osco CW994, Mallory 9-40102 and GLM 56240.

Engine application: Chevrolet V8 OHV 396, 427 and 454 C.I.D., 1966 and up.

Fits these applications:

• 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).
• 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).

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.

• Includes all plugs, gaskets and mounting hardware to the cylinder head.
• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• 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.
• 20-0097 3" spacer block (complete with mounting hardware, gasket and 3/4" pipe plug). Capable of stacking.
• 1-0104P adaptor package for fresh water cooled manifold (includes gaskets and block off plate).
• 1-0105 center riser manifold-to-riser gasket for fresh water cooling.
• 1-0106P adaptor package for raw water cooling. Used in pre-heating applications (includes gaskets and block off plate with vent hole).
• 1-0107 center riser manifold-to-riser gasket (raw water cooling).
• 20-0082P riser mounting package for both 20-0082 and 20-0100.
• 20-0082SS P stainless steel mounting package (with brass plugs) for both 20-0082 and 20-0100.
• 20-0084P straight exhaust adaptor (includes adaptor, hose and clamps). For use with 3 1/2" I.D. exhaust hose.
• 20-0085P straight exhaust adaptor (includes adaptor, hose and clamps). For use with 2 1/2" I.D. exhaust hose.
• 20-0086P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 2 1/2" I.D. exhaust hose.
• 20-0087P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3" I.D. exhaust hose.
• 20-0088P 30 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 2 1/2" I.D. exhaust hose.
• 20-0089P 30 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3" I.D. exhaust hose.
• 20-0092P 45 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3" I.D. exhaust hose.
• 20-0093P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3 1/2" or 4" I.D. exhaust hose.
• CHVA-1-84P manifold mounting package (includes bolts and pipe plugs).
• CHVA-1-84SS-P stainless steel manifold mounting package (includes stainless bolts and brass plugs).
• CHVA-47-0000 manifold to cylinder head gasket.
• MC-27-47487 alternator bracket.

Manufactured by Barr Marine. Part number CHVA-1-84.