ATK High Performance Chevy 383 Stroker 470 HP Base Long Block Crate Engines

Looking for an engine that puts out big power and sounds flat out NASTY!? You will find those features with ATK High Performance Chevy 383 Stroker 470 hp base long block crate engines. Engine specifications include: * Horsepower: 470 hp at 5,200 rpm * Torque: 490 lb.-ft. at 4,800 rpm * Block: Seasoned GM 4-bolt main with one-piece seal and passenger side dipstick * Crankshaft: Scat nodular iron * Connecting rods: Scat 4340 forged I-beam with ARP 8740 bolts * Pistons: Forged * Piston rings: Moly rings * Compression ratio: 10:1 compression * Camshaft: Hydraulic roller * Camshaft Specifications: 224/236 duration at .050 and .591in/.591ex lift with a 108 degree lobe separation * Cylinder heads: Dart SHP aluminum 72cc chamber with 2.02 in. intake and 1.60 in. exhaust valves * Rocker arms: Billet 1.6 ratio aluminum roller rockers * Oil pan: Original-style 5-quart pan * Engine will not produce enough vacuum for power brakes Show Less