LONG BLOCK LS 5.3

Elevate your vehicle's performance with the ATK High Performance Engines Long Block LS 5.3, designed for enthusiasts seeking power and reliability. This remanufactured crate engine delivers an impressive 385 horsepower, making it an excellent choice for Chevrolet, GMC, and Cadillac models from 1999 to 2007.

• High Power Output: With 385 HP, this engine significantly enhances your vehicle's acceleration and overall performance.
• Hydraulic Roller Cam Style: The OE roller cam provides smooth operation and improved efficiency, ensuring a responsive throttle.
• Internal Engine Balance: Achieve optimal performance with a finely balanced engine, reducing vibrations and enhancing longevity.
• Custom Tuning Recommended: Unlock the full potential of this engine with a custom chassis dyno tune, especially when paired with upgraded headers and injectors.
• Versatile Fitment: Compatible with a range of GM vehicles, this engine is an ideal upgrade for your Chevy LS application.

Note: Oil pan, computer, flywheel, and other components are not included. Ensure you have the necessary parts for installation.

Upgrade to the ATK Long Block LS 5.3 and experience the difference in your ride!