Chevrolet Big Block 427 and 454 C.I.D.
All Models Center Riser Generic
Aluminum
Barr Marine Manifolds
Click on Images or Part Numbers below to Check Prices

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Note: Manifold includes CHVA 1 92P (mounting package to head) and risers include 20 0107P (mounting package to manifold).

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.

20-0108 Water cooled center discharge riser (3/4” N.P.T. cooling hose connection).
Standard for use with 3”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.

1-0105 Center riser manifold-to-riser gasket for fresh water cooling.

1-0107 Center riser manifold-to-riser gasket (raw water cooling).

20-0107P Riser mounting package for both 20-0107 and 20-0108.

20-0087P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps).
For use with 3” I.D. exhaust hose.

20-0089P 30 degree exhaust elbow adaptor (includes adaptor, hose and clamps).
For use with 3” I.D. exhaust hose.

20-0093P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps).
For use with 3 1/2” or 4” I.D. exhaust hose

CHVA-1-92P Manifold mounting package (includes bolts and pipe plugs).

CHVA-47-0000 Manifold to cylinder head gasket.

The center riser is a two-piece aluminum manifold/riser ideally suited for replacement use where riser protection is required. The Barr Center Riser aluminum manifold/riser uses flexible exhaust hose which facilitates connection to existing exhaust lines. All elbows (cast iron) can swivel inboard or outboard for perfect fit. The Barr Center Riser aluminum manifold/riser is designed to limit back pressure on the engine, resulting in more efficient engine performance. The manifold and riser can be reversed and will fit either side of the engine.

The Barr Center Riser aluminum manifold/riser is cast of 356 T6 aluminum, well suited for fresh water marine applications. Barr Marine’s Center Riser aluminum manifold/riser come with a one year warranty. However, Barr Marine By EDM does not recommend use of this product in salt water applications and does not warrant this product in salt water due to extreme corrosion.
 

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