Seasoned, one piece rear main seal blockSonic tested to assure wall thicknessMax bore .040
Premium cast iron crankMicro-polished crank for superior finishHydraulic flat tappet camshaftHypereutetic pistons
Cast iron Vortec
Cam Type: Flat Tappet.457 Intake Lift, .457 Exhaust Lift218 Intake Duration, 218 Exhaust Duration @.050108° Lobe Separation Angle
Cast iron marine intakeDyno test results shipped with engine
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