Mahle MS Piston Set GM LSX 438ci 4.130in Bore 4.1in Stk 6.125in Rod .927 Pin -8cc 11.2 CR Set of 8

If you're building a high-performance GM LSX engine, this Mahle MS Piston Set is a solid choice for your 438 cubic inch application. Mahle is a well-known name in engine components, and these pistons are built to handle the demands of a performance build. They feature a 4.130-inch bore and a 4.1-inch stroke, designed to work with a 6.125-inch connecting rod and a .927-inch wrist pin.

This set is engineered to achieve an 11.2:1 compression ratio, which is a notable increase over stock and contributes to more power. The pistons themselves have a -8cc dish volume, which is crucial for achieving that target compression with specific cylinder head volumes. They are constructed from a durable material suitable for performance use, and each piston weighs approximately 427 grams, helping to balance your rotating assembly. This set includes eight pistons, enough for a complete V8 engine build.

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 to ensure optimal performance and longevity of your engine build.