Mahle MS Piston Set GM LS 384ci 3.908in Bore 4in Stroke 6.125in Rod .927 Pin -14cc 10.1 CR Set of 8

Mahle's MS Piston Set is built using 2618 aluminum, a strong alloy commonly used in high-performance applications for its durability and ability to withstand extreme temperatures and pressures. This set is specifically designed for GM LS engines displacing 384 cubic inches, featuring a 3.908-inch bore and a 4.000-inch stroke. The pistons are engineered to work with a 6.125-inch connecting rod and a 0.927-inch wrist pin, ensuring precise fitment within the engine assembly.

With a dish volume of -14.0cc, these pistons achieve a 10.1:1 compression ratio when paired with the appropriate cylinder heads and gasket thickness. This compression level is a notable increase over stock, which can lead to improved throttle response and overall power output. Each piston weighs in at approximately 384 grams, contributing to a well-balanced rotating assembly for smoother operation at higher RPMs. This set includes eight pistons, providing a complete solution for a full engine rebuild.

It's important to note that this piston set is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions and specifications to ensure proper fitment and performance for your specific GM LS engine build.