Manley Subaru EJ20/EJ25 4340 Billet 79mm Stroke Turbo Tuff Series Crankshaft

The Manley Performance Subaru EJ20/EJ25 4340 Billet 79mm Stroke Turbo Tuff Series Crankshaft is a high-performance component designed for demanding turbocharged applications. Crafted from premium 4340 Turbo Tuff billet material, this crankshaft offers exceptional strength, precision, and reliability. Key features include gun-drilled pins and fully knife-edged counterweights, which reduce weight and improve balance for optimal engine performance. The multi-step heat treatment and nitriding process enhance durability, while stress relief, shot peening, and 100% magnaflux inspection ensure flawless quality and long-lasting reliability. This crankshaft is engineered to withstand high-horsepower and high-boost conditions, making it ideal for serious enthusiasts and race applications.

Designed for Subaru engines, this crankshaft fits EJ20 and EJ25 models with a 79mm stroke, suitable for high-performance builds from 2011 to 2025. It serves as a direct replacement or upgrade for stock crankshafts in turbocharged Subaru engines, providing increased strength and durability for high-horsepower tuning, track use, or aggressive street driving. Installation is straightforward for experienced technicians familiar with Subaru engine modifications. The kit includes the billet crankshaft, ensuring a reliable upgrade for performance-focused builds. This component is perfect for enthusiasts seeking to maximize engine strength and reliability in high-boost, high-horsepower applications.