Mahle MS Piston Set SBC 384ci 4.040in Bore 3.750stk 6.125in Rod .0927in Pin -2cc 11.5 CR Set of 8

This is a set of Mahle MS forged pistons designed for Small Block Chevy engines, specifically for builds aiming for a 384 cubic inch displacement with a 4.040-inch bore and a 3.750-inch stroke. These pistons are built to handle the demands of a performance engine, offering a lightweight design with a flat-top configuration and a -2cc dish volume, which results in an 11.5:1 compression ratio when paired with a 64cc cylinder head. The included 6.125-inch connecting rod length and 0.0927-inch pin diameter are standard for many performance Small Block Chevy applications.

Mahle is known for well-built engine components, and this piston set is no exception. Constructed from durable 4032 aluminum alloy, these pistons are designed for longevity and performance in modified engines. The 4032 alloy offers good thermal expansion properties, making it suitable for tighter piston-to-wall clearances, which can lead to quieter operation and improved oil control. Each piston weighs approximately 364 grams, contributing to reduced reciprocating mass, which can allow the engine to rev more freely and potentially improve throttle response.

This set includes eight pistons, along with the necessary pins and locks, ready for installation. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For optimal results and engine longevity, ensure proper balancing of rotating assembly components and follow manufacturer guidelines for installation and break-in procedures.