Mahle MS Piston Set GM 604 350ci 4.005in Bore 3.48in Stk 5.7in Rod 0.927 Pin -5cc 10.5 CR Set of 8

If you're rebuilding a GM 604 Crate Engine or looking for a robust replacement for your 351 cubic inch Chevrolet Small Block, this Mahle MS Piston Set is a solid choice. These pistons are designed as a direct fit, drop-in replacement, meaning they're built to work with your existing press-fit connecting rods and crankshaft. They feature a -5cc dish volume, which helps achieve a 10.3:1 compression ratio when paired with the right cylinder heads and gasket combination, making them suitable for a wide range of performance builds.

Mahle crafted these pistons from 4032 aluminum, a material known for its strength and durability, especially under the higher temperatures and pressures found in performance engines. The forged construction further enhances their resilience, making them well-suited for demanding applications where reliability is key. Each piston weighs in at approximately 550 grams, contributing to a balanced rotating assembly. The 0.927-inch pin diameter is standard for many performance applications, and the press-fit design ensures a secure connection to the connecting rod.

This set includes all eight pistons needed for a V8 engine. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to your engine's specific build specifications and manufacturer guidelines to ensure proper installation and optimal performance.