Mahle MS Piston Set GM LSX 417cid 4.075x1.110RCH 4.0 Stk 6.125 Rod .927 Pin -14cc 10.2CR - Set of 8

This Mahle MS Piston Set gives you everything you need to rebuild the heart of your GM LSX engine for a 417 cubic inch displacement. Inside this box, you'll find a complete set of eight forged pistons, designed to work with a 4.000-inch stroke crankshaft and a 6.125-inch connecting rod. Each piston features a 0.927-inch pin diameter and a -14cc dish volume, which helps achieve a 10.2:1 compression ratio when paired with the right cylinder heads and gasket combination.

Mahle chose 2618 aluminum for these pistons, a well-known material in high-performance applications for its strength and durability under extreme conditions. These pistons are built to handle the demands of a performance engine, offering a solid foundation for your build. Each piston weighs in at approximately 427 grams, which is a notable figure for forged components of this size and helps balance the rotating assembly.

This set is intended for performance builds where increased displacement and compression are desired. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to your engine builder's specifications and the manufacturer's installation instructions for proper assembly and tuning.