Mahle MS Chevrolet LS 5.3L Piston Set 325cid 3.780in Bore 3.622 Stroke 8.5cc 11.4 CR Set of 8

When you're rebuilding the heart of your Chevrolet LS 5.3L engine, you want parts you can trust. This set includes eight Mahle MS forged pistons, designed to meet the demands of a performance build. These pistons are specifically made for LS1/2/6 style cathedral port heads, ensuring a good match for your cylinder heads.

Mahle builds these pistons from 2618 aluminum, a strong material known for its durability and ability to handle high temperatures and pressures. They feature a dome volume of 8.5cc, contributing to an 11.4:1 compression ratio when paired with compatible heads and a 3.622-inch stroke crankshaft. The bore size is 3.780 inches, and the compression height is 1.330 inches, with a 0.945-inch pin diameter. Each piston weighs in at 441 grams, balancing strength with reasonable weight for the rotating assembly. This set is intended for 325 cubic inch displacement engines.

It's important to 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. This set is a solid choice for those looking to enhance their LS engine's performance with well-built internal components.