Seasoned block, bored .060 over Two piece rear seal, drivers side dipstick Square and parallel decked Align honed main bearing bore Cylinders honed on computer controlled machine to within .0002 straightness and roundness Cylinders are sonic tested for thickness
New cast steel crankshaft GM connecting rods 150,000 psi rod bolts Hypereutectic Pistons Hastings moly rings Rotating assembly balanced to within 2 grams High volume oil pump Flat tappet cam Double roller timing set
GM cast iron oval port heads Screw-in studs and guide plates 120 cc chambers Hardened retainers & keepers 2.25 swirl polished intake valves 1.88 swirl polished exhaust valves Hardened push rods Long slot rockers
Cam Type: Flat Tappet.552 Intake .555 Exhaust230 Intake / 236 Exhaust duration @ .050 - 110 degree lobe separation
34 degrees at 3500 RPM
New valve covers, oil pan and timing cover Brass freeze plugsDyno tested – and shipped with results
Not for use in pollution controlled vehicles.
This block does have a mechanical fuel pump provision
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