Out of stock
SKU: GMP19431955
MPN: 19431955
The Chevrolet Performance LT4 6.2L supercharged crate engine represents the same powertrain that made the Corvette Z06 a track weapon. This Gen V small-block V8 produces 650 horsepower and 650 lb-ft of torque through a 1.7L Eaton supercharger capable of generating more than 9 pounds of boost. Built in the USA with forged internals and direct injection, the LT4 arrives ready for installation in pre-1976 street vehicles and off-road applications. We stock this engine for builders who demand factory-engineered supercharged performance without sourcing individual components.
The LT4's architecture starts with a cast aluminum block featuring 6-bolt cross-bolted main caps, supporting a forged steel crankshaft and forged powdered-metal connecting rods. Forged aluminum pistons operate at a 10.0:1 compression ratio, optimized for premium 92-plus octane fuel. The A356T6 rotocast aluminum cylinder heads flow through 2.130-inch intake and 1.590-inch exhaust valves, driven by a hydraulic roller camshaft with variable valve timing. Valve lift measures 0.492 inches on the intake side and 0.551 inches on exhaust, with cam duration of 189 degrees intake and 223 degrees exhaust at 0.050-inch lift. The package includes the intake manifold with direct fuel injection, throttle body, oil pan, valve covers, timing cover, water pump, harmonic balancer, and flywheel. Maximum engine speed reaches 6,600 revolutions per minute.
The LT4 crate motor suits restomod builds, pro-touring projects, and custom street machines where supercharged power and modern engine management are priorities. Chevrolet backs this engine with a 24-month or 50,000-mile limited warranty, providing confidence for high-performance applications. Note that this engine is not intended for marine use. Pair it with compatible parts and accessories from our catalog to complete your powertrain swap. We ship from Florida and support builders nationwide with factory-fresh Chevrolet Performance components.
The Chevrolet Performance LT4 produces 650 horsepower and 650 lb-ft of torque. This output comes from the 1.7L Eaton supercharger generating more than 9 pounds of boost, combined with direct fuel injection and variable valve timing on the 6.2L displacement V8.
The LT4 requires premium pump gasoline rated at 92 octane or higher. The engine's 10.0:1 compression ratio and supercharged forced induction demand higher-octane fuel to prevent detonation and achieve rated power output.
The LT4 ships with the intake manifold, direct fuel injection system, throttle body, cylinder heads, oil pan, valve covers, timing cover, water pump, harmonic balancer, and flywheel. You will need to source a transmission, wiring harness, and engine management controller separately.
Chevrolet Performance backs the LT4 with a 24-month or 50,000-mile limited warranty, whichever comes first. This factory warranty applies when the engine is installed in approved applications, specifically pre-1976 street vehicles or off-road vehicles.
No. Chevrolet Performance explicitly states the LT4 crate engine is not intended for marine applications. The engine is designed for pre-1976 street vehicles and off-road use only. Marine environments require different cooling and corrosion protection systems.
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