Mahle MS Piston Set GM LS 427ci 4.125in Bore 4in Stk 6.125in Rod .927 Pin -3cc 12.2 CR Set of 8

If you're building a high-performance GM LS engine, specifically a 427 cubic inch (428cid) application, this Mahle MS Piston Set is a solid choice. These pistons are designed to work with LS7-style heads and are a key component for anyone looking to get the most out of their engine build. They feature a flat top design with a -2.5cc dish, which contributes to a compression ratio of 11.8:1 when paired with the right cylinder heads and a 4.000-inch stroke crankshaft.

Mahle has engineered these pistons from a strong 4032 aluminum alloy, known for its excellent thermal expansion properties and durability, making it suitable for demanding builds. Each piston weighs in at 438 grams and uses a standard 0.927-inch wrist pin. The set includes eight pistons, all ready to be installed in your GM LS 427ci engine. This set is designed for a 4.125-inch bore and uses a 6.125-inch connecting rod, ensuring proper geometry for high-revving applications.

Keep in mind that this piston set is not CARB approved and cannot be shipped to California. It's important to verify all component compatibility for your specific engine build to ensure optimal performance and reliability. This set is a critical part of a performance engine build, and Mahle is a well-known name in the industry for their piston technology.