Gray Marine 4 and 6 Cylinder in-Line Models
GENERIC
Part Number and DescriptionGR-1-162 Water cooled exhaust manifold to fit The 4-cylinder models 620, 4-60 and 70. Use with OEM risers, elbow connectors or replace with Barr products.
GR-1-175 Water cooled exhaust manifold to fit the 4-cylinder models 4-75, 4-85 and 80. Use with OEM risers, elbow connectors or replace with Barr products. GR-1-226 Water cooled exhaust manifold to fit the 6-cylinder 226 C.I.D. models. Use with OEM riser, elbow connectors or replace with Barr products. GR-1-0001 Exhaust end plate flange (threaded for 2” female N.P.T.). |
Gray Marine V8-401 C.I.D. 280 H.P.
ALL MODELS DIRECT REPLACEMENT
Part Number and DescriptionGR-1-6470L Water cooled exhaust manifold (port side) to fit the 401 Buick. Includes
20-0000 Swivel-type high discharge exhaust riser; 8 1/2” riser protection. Requires (1) mounting hardware kit #20-0002P per riser. Use only with 2 7/8” to 3” I.D. exhaust hose. 20-0002P Mounting hardware kit (Barr style riser/elbows only). 20-0034 or 20-0035 Exhaust connector #20-0035 (for 2 1/2” I.D. exhaust hose) or exhaust connector #20-0034 (for 3” I.D. exhaust hose). Connects to #20-0039 using (1) #20-0002P per connector. 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. Re-quires (1) mounting hardware kit |
PRODUCT INSTALLATION GUIDELINES