Mahle MS Piston Set GM LS 383ci 3.905in Bore 4in Stroke 6.125in Rod .927 Pin -6cc 10.8 CR Set of 8

This Mahle MS Piston Set includes eight forged pistons, designed for GM LS engines with a 383 cubic inch displacement. These pistons feature a 3.905-inch bore and are built to work with a 4.000-inch stroke crankshaft and a 6.125-inch connecting rod. The set comes with 0.927-inch wrist pins and has a -6cc piston dish, which contributes to a 10.8:1 compression ratio when paired with the specified engine components. Each piston weighs approximately 386 grams, indicating a well-built component suitable for demanding applications.

Mahle utilizes 4032 aluminum for these pistons, a material known for its strength and durability, making them a solid choice for performance engine builds where reliability is key. The forged construction means these pistons can handle higher cylinder pressures and temperatures compared to cast pistons. This set is intended for builders looking to achieve a specific compression ratio and performance level in their GM LS engine, whether for street performance or track use. Remember that these pistons are not CARB approved and cannot be shipped to California.

When planning your engine build, ensure you have all the necessary supporting components, such as appropriate rings, bearings, and gaskets, to complement these high-performance pistons. Consulting with your engine builder or referring to Mahle's technical documentation will help ensure a successful installation and optimal performance from your new Mahle piston set.