Chevrolet Performance 19418654 383 CID Short Block Assembly

When it comes to cranking serious torque from the classic Small-Block, it’s hard to beat the 383 stroker combination, which uses a long, 3.800-inch stroke with 4.005-inch bores to generate exceptional low-end pulling power and surprising high-rpm horsepower. Rock solid base The 383 Short Block is the base for Chevrolet Performance SP383 crate engines. Compression ratio with 64cc cylinder heads (not included) is approximately 9.6:1. 383 Short Block Tech Specs Engine Type: Chevy Small-Block V8 Displacement (cu. in.): 383 Bore x Stroke (in.): 4.000 x 3.800 Block: Cast-iron with 4-bolt main caps Crankshaft: Forged steel Connecting Rods: Heavy-duty forged steel Pistons: Hypereutectic aluminum Ignition Timing: 32° total at 4000 rpm Maximum Recommended rpm: 6000 Balanced: External