Gray Marine V8 401 Buick Exhaust Kit with 90 Degree Swivel Elbows 

Complete Barr Marine exhaust kit for the Gray Marine V8 401 Buick. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (1) GR-1-6470L port and (1) GR-1-6470R starboard Gray Marine V8 401 Buick Exhaust Manifolds. Water cooled exhaust manifold to fit the 401 Buick. Includes all fittings, hose adaptors and primary water pump mounting provision. Accepts Barr replacement risers and connectors only.
• (2) 20-0031 Swivel 90 Degree Exhaust Elbow 2-1/2 or 3 Inch Hose. Swivel-type 90 degree exhaust elbow connector with internal water discharge. Accepts 2 1/2" to 3" I.D. exhaust hose. Barr exhaust risers and connectors can be swiveled inboard or outboard in the horizontal plane, and all except straight connectors can also be swiveled in the vertical plane.
• (2) 20-0002P Swivel Riser and Elbow Mounting Hardware Kit. Mounting hardware kit.

Fits Gray Marine V8 401 C.I.D. 280 H.P., all models (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:

• 20-0000 swivel-type high discharge exhaust riser; 8 1/2" riser protection. Requires (1) mounting hardware kit #20-0002P per riser.
• 20-0039 fully jacketed swivel-type exhaust riser; 7" riser protection. Requires (2) mounting hardware kits #20-0002P ((1) kit to mount riser to manifold and (1) kit to mount elbows #20-0034 or #20-0035 to riser).
• 20-0055 swivel-type 30 degree exhaust elbow connector; fully jacketed. Accepts 2 1/2" or 3" I.D. exhaust hose.
• 1-0019 end plate gasket (will fit both ends).
• BV6-1-75L water cooled end discharge port manifold to fit the Buick V6 engine (1/2" N.P.T. cooling connections). All years.
• BV6-1-75R water cooled end discharge starboard manifold to fit the Buick V6 engine (1/2" N.P.T. cooling connections). All years.
• INT-1-5457L water cooled exhaust manifold (port side) for the Ford engine. Use with Barr risers and exhaust connectors.
• INT-1-5457R water cooled exhaust manifold (starboard) for the Ford engine. Use with Barr risers and exhaust connectors.
• INT-1-58L water cooled exhaust manifold (port) for the Ford engine. Use with Barr risers and connectors.
• INT-1-58R water cooled exhaust manifold (starboard) for the Ford engine. Use with Barr risers and connectors.
• INT-1-6268L water cooled exhaust manifold (port) for the Ford engine. Use with Barr risers and connectors.
• INT-1-6268R water cooled exhaust manfold (starboard for the Ford engine. Use with the Barr risers and connectors.
• OF-1-60L water cooled end discharge port manifold to fit the small block Chevrolet (1/2" N.P.T. cooling hose connections). All years.
• OF-1-60R water cooled end discharge starboard manifold to fit the small block Chevrolet (1/2" N.P.T. cooling hose connections). All years.
• 1-0022 end plate gasket (will fit both ends).
• CHV-47-0000 manifold to cylinder head gasket.
• OF-1-60F-P manifold to cylinder head mounting package.
• OMC47-909314 exhaust manifold to cylinder head gasket.

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