Mahle MS Piston Set SBC 406ci 4.155in Bore 3.750in Stroke 5.7in Rod 0.927 Pin -20cc 9.9 CR Set of 8

Built from 4032 aluminum alloy, these Mahle MS pistons are designed for performance Small Block Chevrolet builds targeting around 406 cubic inches. The 4.155-inch bore size and 3.750-inch stroke, combined with a 5.700-inch connecting rod, create a robust combination for increased displacement. The -20cc dish volume is a key design choice, working with your cylinder head volume to achieve a target compression ratio of 9.9:1, which is well-suited for many naturally aspirated or forced induction street performance applications.

Each piston weighs in at approximately 515 grams, a balance that contributes to reduced reciprocating mass without sacrificing strength. The 0.927-inch wrist pin diameter is standard for many performance applications, ensuring compatibility with a wide range of connecting rods. Mahle's reputation for well-built engine components means you're getting a set of pistons designed for durability and consistent performance under demanding conditions. This set includes all eight pistons needed for a complete engine build.

Please note that this piston set is not CARB approved and cannot be shipped to California. Always refer to manufacturer installation instructions for proper fitment and assembly procedures.