BluePrint Engines Pro Series Chevy 502 C.I.D. 621 HP Base Long Block Crate Engines

BluePrint Engines Pro Series Chevy 502 c.i.d. 621 hp base long block crate engines are fully Dyno tested, passed vigorous inspections, and are prepared for those wanting maximum horsepower and durability. Features, specs, and contents: * 621 hp, 560 ft.-lb., compression ratio 10.0:1 * Cast iron block with 4-bolt main * Forged steel crankshaft and connecting rods * Forged pistons and rings * Internal balanced rotating assembly * BluePrint aluminum cylinder heads --119cc chamber --2.30 in. intake/1.88 in. exhaust valves --316cc intake/124cc exhaust runners * Hydraulic roller cam --.647 intake/.647 exhaust lift --248 intake/254 exhaust duration @ .050 --112 degree lobe separation * Valve covers, oil pan, and timing cover * Harmonic balancer Show Less