MerCruiser 54099A5 Right Starboard Exhaust Manifold Ford V8 888 302 351 65603A4 Dipsticks and Tubes This has the Two Bolt

This has the Two Bolt Mount for exhaust extension Plate: (There is a similar one with a 1 bolt pattern that looks the same

Crankshaft: 554326

Removed from a 1976-1979 MerCruiser 470 S/N 5064860

but should still be completely functional (see pictures

For 120 / 140 drives S/N 4179999 and Below (1967-197x)

MerCruiser 54099A5 Right Starboard Exhaust Manifold Ford V8 888 302 351 65603A4 Dipsticks and Tubes This has the Two BoltItem Details Removed from a MerCruiser Ford V8 888 5. 0L 305 188hp (2bbl) 1971 1977 (Serial Number 3709675 which is probably mid 70's and after 1973) Generally found on some MerCruiser Ford V8 Engines (302 & 351) 1971 1977 Overall good condition Starboard Left Side Exhaust Manifold Assembly (Log Style) 54099 54099A5 Superseded to 65603A4 & 65603A12 Just make sure to replace the intake manifold gasket & exhaust riser gasket with some new ones if you