Mahle MS forged piston set for small-block Chevy 384ci configurations is supplied as eight pistons sized to a 4.040" bore with a 3.750" stroke and 6.125" rod length. These -4cc pistons use a 0.927" wrist pin and list an 11.3:1 compression ratio; the 4032 alloy reference indicates an aluminum construction aimed at durable, high-quality rebuilds and performance engine assemblies.
Mahle MS Piston Set SBC 384ci 4.04in Bore 3.75in Stk 6.125in Rod .927in Pin -4cc 11.3 CR Set of 8