Seasoned 4 bolt main blockOne piece rear main sealMax bore .040Align honed main bearing boreSonic tested to assure wall thickness
New cast steel crankshaft-externally balancedChevy heavy beam rods resized and clearance improved150,000 PSI rod boltsHypereutectic pistonsHastings moly ringsNew Hydraulic flat tappet camshaftHeavy duty double roller timing
GM Vortec cast iron cylinder heads1.25 dia. valve springs, hardened retainers and keepers2.02 swirl polished intake valves1.60 swirl polished exhaust valvesElgin hardened push rodsLong slot rockers with positive lock adjusting nuts
Cam Type: Flat tappet.480 Intake .489 Exhaust218 Intake / 224 Exhaust duration @ .050 - 112 degree lobe separation
New cast iron marine intakeFuel pumpFuel line and filterCast iron circulating pump600 electric choke carburetorHarmonic balancerPolished aluminum valve covers Oil panDistributorSpark plugsBluePrint plug wiresBrass freeze plugsDyno test results shipped with engine
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