The Mahle MS piston set designed for GM LS engines offers high performance and durability for your 427 cubic inch build. Crafted with a 4.065-inch bore and a 4.125-inch stroke, these pistons provide optimal power and efficiency. Each piston features a 6.125-inch connecting rod compatibility and a piston pin diameter of 0.927 inches, ensuring a precise fit for demanding engine applications. The set includes eight pistons, perfectly suited for rebuilds and performance upgrades in GM LS series engines. Constructed from high-quality materials, these pistons contribute to reliable engine operation and longevity. The Mahle pistons come with a compression ratio of approximately 11.1:1, delivering a balance of power and fuel efficiency. Their lightweight design, with each piston weighing around 7.2 ounces, helps reduce overall engine stress and enhances responsiveness. The pistons feature advanced coatings: phosphate treatment for corrosion resistance, Grafal coating to minimize friction, and a hard anodized top ring groove to improve wear resistance. These enhancements ensure longevity even under high-performance conditions. Please note that these pistons are not carb-legal and require acknowledgment of this status during installation. They are suitable for use in non-carbureted engines and are essential components for custom engine builds or performance upgrades. Proper installation and compliance with all relevant regulations are recommended to ensure optimal engine function and durability.
Features:
- Designed for GM LS 427 cubic inch engines with 4.065-inch bore and 4.125-inch stroke
- Set includes eight pistons with a 6.125-inch connecting rod compatibility
- Piston pin diameter of 0.927 inches for precise fit and smooth operation
- Compression ratio of approximately 11.1:1 for balanced power and efficiency
- Constructed from high-quality materials for durability and performance
- Coatings include phosphate for corrosion resistance, Grafal to reduce friction, and hard anodized top ring groove for wear resistance
- Lightweight design around 7.2 ounces per piston to improve engine responsiveness
- Suitable for non-carbureted engines; carb acknowledgment required
