STROKE LENGTH: 4-5/8"
BORE SIZE: 3.625"
COMPRESSION RATIO: 9.75:1
Cases must be bored to accept 3-5/8" bore cylinders, and a minor crankcase clearancing operation for the crankpin nut must be performed.
1977-1989 style pinion gear and oil pump drive gears must be used when installing S&S flywheels in 1990-1999 engines.
No Manifold or pushrods included.
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