BRAND NEW BluePrint Cast Iron Block4 Bolt MainsOne piece rear sealSquare and parallel deckedAlign honed main bearing boreCylinders honed on computer controlled machine to within .0002straightness and roundnessCylinders are sonic tested for thickness
New cast crankshaft — 4.250" stroke & 6.135" rods 150,000 psi rod boltsHypereutectic pistonsHastings moly ringsRotating assembly balanced to within 2 gramsHigh volume oil pump
BluePrint Cast IronHardened retainers and springs2.3 swirl polished intake valves1.880 swirl polished exhaust valves
Cam Type: Flat Tappet.552 Intake .555 Exhaust230 Intake / 236 Exhaust duration @ .050 - 110 degree lobe separation
10-16° inital and total timing 32-34° at 3500 rpm
Intake Manifold — single plane, satin aluminum800cfm Carburetor Valve covers, oil pan and timing coverBrass freeze plugsDyno test results shipped with engine
NEW BluePrint block manufactured and machined in the USA. Not for EGR
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