L8P

We’ve optimized every cubic inch of our largest-displacement LT engine with the unique L8P performance crate engine. With 523 horsepower and 543 lb.-ft. of torque, this package combines the displacement and heavy-duty strength of our production-based L8T 6.6L engine plus a unique camshaft based off the LT2.
It’s all rooted in the tough foundation of the L8T, with a forged steel crankshaft, high-strength parts, high-flow heads and composite intake manifold. We then add a more performance-oriented valvetrain, including valves, springs, and an LT2- based camshaft. It features more lift and duration to help draw more air and fuel into the engine, which helps build power.
Our L8P crate engine package comes complete from the throttle body to the oil pan, including the PCV tube, evap tube, oil dipstick, oil fill tube and cap. It does not include the controller, harness, oxygen sensors or a Front End Accessory Drive system. See Installation Notes below for recommendations.
INSTALLATION NOTES
• Engine is shipped with high-pressure direct-injection fuel pump installed
• Front End Accessory Drive system must be ordered separately and includes hydraulic power steering, with center pulley. Pulley-mounted fan not recommended
• Use Front End Accessory Drive system P/N 19433745 for applications with air conditioning and Front End Accessory Drive system P/N 19433746 for applications without air conditioning
• Includes 8-bolt flexplate for automatic transmissions
• Use with Engine Control kit 19435524 (must use 6L80-E transmission).