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