CP Pistons Small Block Chevy 383 Flat Top Pistons 4.125 Bore 11.1:1 - BC1100-STD

Build a high-compression Small Block Chevy stroker with CP Pistons BC1100-STD forged flat top pistons designed for 23-degree cylinder head applications. Featuring a 4.125-inch bore, -6.83cc valve reliefs, and compatibility with a 3.750-inch stroke and 6.000-inch connecting rods, these pistons deliver an 11.1:1 compression ratio when paired with 64cc cylinder heads.

Manufactured from premium forged aluminum, CP Pistons provide exceptional strength, thermal stability, and precise machining for demanding street, strip, and race builds. Ideal for naturally aspirated SBC 383 combinations, the BC1100-STD piston set offers consistent compression, strong power output, and long-term durability trusted by engine builders.