Mahle MS Piston Set Chevy LS Flat Top 382cid 3.78in Bor 3.622in Stk 6.098in Rd .945 Pin -4.2cc 9.7CR

Forged from 2618 aluminum, this Mahle MS piston set is built for demanding LS engine builds. The flat-top design with a -4.2cc dish is specifically engineered to achieve a 9.7:1 compression ratio when paired with the correct cylinder heads and gasket combination for a 325 cubic inch displacement. This set features a 3.78-inch bore and a 3.622-inch stroke, utilizing a 6.098-inch connecting rod and a .945-inch wrist pin for robust internal engine performance.

Mahle's expertise in piston manufacturing is evident in the precise machining and material selection. The 2618 aluminum alloy offers excellent strength and thermal stability, crucial for high-performance applications where heat and pressure are significantly increased over stock. These pistons are designed to handle the stresses of boosted or naturally aspirated performance engines, providing a solid foundation for your rebuild. Each piston weighs in at 421 grams, contributing to a balanced rotating assembly when properly matched.

This piston set is intended for engine builders and performance enthusiasts looking to upgrade their Chevrolet LS engine. It's important to note that this part is not CARB approved and cannot be shipped to California. Ensure you consult with your engine builder or refer to Mahle's technical specifications for complete compatibility and installation guidelines, especially regarding cylinder head volume and gasket thickness to achieve the target compression ratio.