GM Marine 7.4 Litre (454 CID) 305 HP @ 4400 RPM / 435 lb. ft. @ 3200 RPM (PFI)
1987-2001, 1-piece seal, 4-bolt main, oval port, roller cam, 8 qt. oil pan, must use electric fuel pump.
No intake, flywheel, or water pump included.