Mahle MS Piston Set SBC 358ci 4.030in Bore 3.5in Stroke 6.0in Rod .927 Pin -9cc 11.9 CR Set of 8

This is a set of eight Mahle MS forged pistons designed for Chevrolet Small Block engines displacing 357 cubic inches. These pistons feature a 4.030-inch bore, a 3.5-inch stroke, and are built to work with a 6.0-inch connecting rod and a 0.927-inch wrist pin. With a -9cc dish volume, they achieve a compression ratio of 11.9:1, making them suitable for performance builds where controlled compression is key.

Mahle is well-known for their engine components, and these MS series pistons are forged from 2618 aluminum, a strong material commonly used in high-performance applications. Each piston weighs approximately 420 grams, contributing to a balanced rotating assembly. The 4.030-inch bore is a common size for many Small Block Chevy builds, and the specific compression ratio is ideal for naturally aspirated or forced induction setups that require a precise air-fuel mixture. The included wrist pins are 0.927 inches, a standard size for many performance connecting rods.

When rebuilding or upgrading your Small Block Chevy, choosing the right pistons is critical for engine longevity and performance. This set from Mahle offers a well-built option with specific dimensions and compression ratio tailored for a 357ci displacement. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to manufacturer installation instructions for proper fitment and assembly procedures.