Mahle MS Piston Set GM LS 430ci 4.135in Bore 4in Stk 6.125in Rod .927 Pin -3cc 12.4 CR Set of 8

If you're building a high-performance GM LS engine, Mahle's MS Piston Set is designed to handle the demands of a 430 cubic inch displacement. This set is engineered for LS7-style heads and is a solid choice for anyone looking to rebuild or upgrade their engine's top end. These pistons are crafted to work with a 4-inch stroke and a 6.125-inch connecting rod, forming the core of a powerful rotating assembly.

Mahle uses 4032 aluminum for these pistons, a well-known material for its strength and thermal expansion properties, which helps maintain proper piston-to-wall clearance as the engine heats up. With a 4.135-inch bore and a -2.5cc dish volume, these pistons achieve a 12.4:1 compression ratio when paired with compatible LS7 heads, offering a notable increase in power potential. The included 0.927-inch wrist pins are robust and ready for the stresses of performance driving. Each piston weighs in at 441 grams, contributing to a balanced rotating assembly.

This set includes eight pistons, enough for a full V8 engine. Please note 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 to ensure optimal performance and longevity of your engine build.