Mahle MS Piston Set SBC 433ci 4.155in Bore 4.000in Stroke 6.0in Rod .927 Pin -20cc 10.5 CR Set of 8

If you're building a high-performance Chevrolet Small Block engine for serious power, a solid set of pistons is where it all starts. This Mahle MS Piston Set is designed for a 433 cubic inch displacement, featuring a 4.155-inch bore and a 4.000-inch stroke, paired with a 6.0-inch connecting rod. These pistons are crafted from 4032 aluminum, a material known for its strength and thermal expansion properties, making it a popular choice for performance builds where reliability is key.

With a -20cc dish volume, these pistons achieve a 10.5:1 compression ratio when used with a compatible cylinder head and gasket combination, perfect for naturally aspirated or forced induction applications seeking improved power output without sacrificing too much streetability. The included 0.927-inch pin is standard for many performance small block builds. Each piston weighs in at approximately 431 grams, contributing to a well-balanced rotating assembly. Mahle is a well-known name in engine components, and this set reflects their commitment to well-built parts for demanding engine builds.

This set includes eight pistons, enough for a complete V8 engine. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to your engine builder's specifications and torque procedures when installing performance engine components.