The Mahle MS Piston Set (Part Number: mhl930223175) is engineered specifically for GM LS engines with 378 cubic inch displacement, compatible with LS3 and L92 style rectangular port cylinder heads. Constructed from durable 4032 aluminum, these pistons feature a 4.075-inch bore diameter and a 3.622-inch stroke, making them suitable for high-performance applications. The set includes pistons with a compressed height optimized for a 6.125-inch connecting rod, ensuring proper engine geometry and efficiency. Each piston has a pin diameter of 0.927 inches and a volume of -4.3cc, contributing to a compression ratio of approximately 10.3:1, ideal for street and performance use.
Designed for durability and consistent performance, these pistons are not carb-approved but require acknowledgment of this restriction during installation. They are suitable for applications where air freight is permitted, and are tailored for vehicles that demand reliable power with precision engineering. The set is supplied in a convenient package of eight pistons, making it ideal for rebuilds and performance upgrades. Mahle’s reputation for quality ensures these pistons meet stringent standards for fit, finish, and longevity, helping you achieve optimal engine performance and reliability.
Whether you're restoring a classic GM LS engine or building a high-performance powerplant, the Mahle MS Piston Set offers the perfect combination of strength, precision, and compatibility to meet demanding automotive needs.
Features:
- Compatible with GM LS 378ci engines and LS3 / L92 style rectangular port heads
- Constructed from high-strength 4032 aluminum for durability
- Bore diameter of 4.075 inches for precise fit
- Connecting rod length of 6.125 inches for optimal engine geometry
- Piston pin diameter of 0.927 inches for secure fit
- Compression ratio approximately 10.3:1 for performance and efficiency
- Set includes eight pistons designed for rebuild and performance upgrades
- Not carb-approved; acknowledgment required during installation
