Mahle MS Piston Set Chevrolet LS 408ci 4.030in Bore 4.00in Stroke -25cc 9.5CR - Set of 8

Mahle is well-known for making solid engine components, and this MS Piston Set is a prime example of their work for Chevrolet LS engines. If you're building a high-performance 408 cubic inch LS engine, these pistons are designed to handle the demands of a serious build. They feature a 4.030-inch bore and are designed to work with a 4.000-inch stroke crankshaft, creating that 408 cubic inch displacement.

These pistons are forged from 2618 aluminum, a strong material chosen for its durability under high stress and temperature. They have a -25cc dish volume, which, when combined with the other engine components, results in a 9.5:1 compression ratio. This ratio is a popular choice for naturally aspirated or boosted street/strip applications, offering a good balance of power and drivability. Each piston weighs in at 412 grams, contributing to a well-balanced rotating assembly. The included wrist pin is 0.927 inches, a standard size for many performance LS applications.

This set includes eight pistons, enough for a complete V8 engine. Remember that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures to ensure the longevity of your new engine build.