Mahle MS Piston Set GM LSX 440cid 4.185x1.110RCH 4.000 Stk 6.125 Rod .927 Pin -5.8cc 11.6CR Set of 8

If you're building a high-performance GM LSX engine, a solid set of pistons is the foundation for everything that follows. This Mahle MS Piston Set is designed for 440 cubic inch LSX applications, giving you the core components needed to achieve serious power goals. These pistons are engineered to handle the demands of a performance build, ensuring reliability when you push your engine hard.

This set features a 4.185-inch bore and a flat-top design with a -5.8cc dish, contributing to an 11.6:1 compression ratio when paired with a 4.000-inch stroke crankshaft and a 6.125-inch connecting rod. The pistons themselves weigh in at 474 grams, and they utilize a .927-inch wrist pin. Mahle uses 2618 aluminum for these pistons, a well-known material in racing for its strength and durability under high temperatures and pressures. This means they're built to withstand the rigors of performance driving and track use.

When assembling your engine, pay close attention to the manufacturer's specifications for piston-to-wall clearance and ring installation, as these are critical for proper break-in and long-term performance. Keep in mind that this piston set is not CARB approved and cannot be shipped to California. Ensure you have all necessary supporting components, such as rings and wrist pin locks, before beginning your build.