ATK GM 415 LS3 Stroker 620 HP LS02 Stage 1 Engine

ATK LS02 620 HP Aluminum LS3 Stroker

ATK GM 415 LS3 Stroker 620 HP LS02 Stage 1 Engine units offer an elite high-output crate motor configuration for enthusiasts seeking the ultimate power-to-weight ratio. This 6.8L 415ci stroker utilizes an aluminum engine block and high-flow aluminum cylinder heads to achieve a verified 620 horsepower. Engineered with a performance hydraulic roller camshaft and a 10.3:1 compression ratio, this LS3-based powerplant provides an aggressive power band and superior thermal management for elite street-strip applications.

Integrating this high-performance assembly into your vehicle is streamlined for platforms like the 2010-2015 Camaro or Corvette, as well as high-end restomod projects. As a Stage 1 performance engine foundation, it arrives in an un-dressed state to allow for complete customization of induction and accessory systems. Supported by a professional 1-Year limited warranty, the ATK LS02 ensures long-term structural reliability and vibration-free operation through a precision internal balance and professional-grade assembly standards.

Key Features of ATK High Performance LS02

• 6.8L 415ci LS3 stroker displacement delivering 620 horsepower.
• Aluminum engine block and cylinder heads for maximum weight savings.
• 10.3:1 compression ratio designed for elite high-output performance.
• Hydraulic roller camshaft optimizes valvetrain duration and response.
• Internal engine balance ensures smooth high-RPM power delivery.
• Seasoned aluminum casting provides high-performance durability.
• Standard 1-Year professional limited warranty included.

LS02 Include:

• Cylinder Heads