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 fittings, hose adaptors and primary water pump mounting provision.
Accepts Barr replacement risers and connectors only.
Manifold end plate and gasket listing: front end plate GR-1-6470A, front gasket 1-0019, exhaust end plate 1-0036, exhaust end gasket 1-0019, header adaptor 1-0001. Header adaptor furnished instead of exhaust end plate.
3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).
Compatible parts:
GR-1-6470L water cooled exhaust manifold (port side) to fit the 401 Buick. Includes all fittings, hose adaptors and primary water pump mounting provision.
20-0000 swivel-type high discharge exhaust riser; 8 1/2" riser protection. Requires (1) mounting hardware kit #20-0002P per riser.
20-0031 swivel-type 90 degree exhaust elbow connector with internal water discharge. Accepts 2 1/2" to 3" I.D. exhaust hose.
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).
