700 HP GM LT4 Engine Package
Upgrade your vehicle with a GM LT4 6.2L Supercharged V8 Engine Package designed for high-performance applications and custom swaps. The LT4 combines direct fuel injection, a supercharger and forged internal components for high-output performance.
Chevrolet Performance lists the LT4 at 376 cubic inches (6.2L), 650 HP at 6,400 RPM and 650 lb-ft at 3,600 RPM. The engine uses a cast-aluminum block with six-bolt main caps, forged steel crankshaft, forged aluminum pistons and a supercharger system.
Key Specifications
- Engine: GM LT4 Gen-V Small-Block V8
- Displacement: 6.2L / 376 cu. in.
- Aspiration: Supercharged
- Factory Rating: 650 HP / 650 lb-ft
- Bore: 4.065″
- Stroke: 3.622″
- Compression: 10.0:1
- Block: Cast aluminum
- Crankshaft: Forged steel
- Pistons: Forged aluminum
- Cylinder Heads: Aluminum
- Fuel System: Direct injection
- Valvetrain: Hydraulic roller
- Recommended Fuel: Premium gasoline
- 700 HP Target: Requires appropriate supporting modifications and calibration
Common Applications
- Chevrolet Camaro ZL1
- Chevrolet Corvette Z06
- Custom Camaro builds
- Classic muscle-car swaps
- GM performance vehicles
- Custom LS/LT engine-swap projects
Chevrolet has also documented LT4 crate-engine installations in custom vehicles, making the platform suitable for a variety of performance builds when the required components are properly matched.
Supporting Components
A higher-output LT4 installation may require:
- ECU/PCM
- Wiring harness
- Fuel-system components
- Intercooling system
- Cooling system
- Compatible transmission
- Engine and transmission mounts
- Exhaust system
- Driveshaft modifications
- CAN-bus integration
- Custom tuning

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