The Mahle MS Piston Set for Small Block Chevy 381 cubic inch engines offers a precise fit and reliable performance for high-performance street and racing applications. Designed with a 4.165-inch bore and a stroke of 3.480/3.500 inches, these pistons are engineered to deliver optimal power and durability. The set features a 6.0-inch connecting rod length and a .927-inch wrist pin for balanced motion and strength. With a compression height of -5.0cc and an compression ratio of 11.0, these pistons are ideal for achieving the desired compression and power output in your engine build. Constructed from high-quality materials, the pistons weigh approximately 469 grams each, ensuring consistent performance and longevity. These pistons are compatible with Chevrolet Small Block engines and are suitable for custom or rebuild projects requiring precise specifications. Please note that these pistons are not carb approved and require carb acknowledgment during installation. They are not suitable for air freight shipping, and proper handling procedures should be followed during transport and installation. The set includes eight pistons, making it ideal for full engine rebuilds or upgrades to enhance horsepower and torque. Built by Mahle, a trusted name in automotive parts, these pistons ensure quality and performance for your engine build or rebuild project.
Features:
- Bore diameter: 4.165 inches for precise fit in small block Chevy engines
- Stroke: 3.480/3.500 inches designed for performance applications
- Connecting rod length: 6.0 inches for optimal engine balance
- Wrist pin diameter: .927 inches for strength and durability
- Compression height: -5.0cc to achieve desired compression ratio
- Compression ratio: 11.0 to boost power output
- Material: High-quality construction for reliability and longevity
- Includes a set of 8 pistons suitable for complete engine rebuilds