Mahle MS LS Piston 378ci 4.075in Bore 3.622 Stroke 6.098 Rod 0cc 10.7CR w/Thermal Barrier - Set of 8

These Mahle MS LS pistons are built with 4032 aluminum, a material known for its strength and ability to handle the stresses of high-performance engines. They're designed for a 4.075-inch bore and a 3.622-inch stroke, creating a 378 cubic inch displacement. The 0cc piston dish combined with the cylinder head volume results in a 10.7:1 compression ratio, which is a solid choice for many naturally aspirated or boosted LS builds looking for improved power without being overly sensitive to fuel octane.

A notable feature is the thermal barrier coating applied to the piston crown. This advanced coating helps reflect heat away from the combustion chamber, keeping temperatures down. This can lead to a more efficient burn and can also help protect the piston itself under demanding conditions. The pistons also come with a 6.098-inch rod length compatibility in mind and feature a 0.943-inch wrist pin. Each piston weighs in at approximately 503 grams, which is a reasonable weight for a forged piston of this size and construction.

This set includes eight pistons, ready for your GM LS engine rebuild. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures, especially regarding ring gap and piston-to-wall clearance for optimal performance and longevity.