Out of stock
SKU: GMP19431955
MPN: 19431955
The 6.2L LT4 is the supercharged Gen V small-block that powers the Corvette Z06, and it remains one of the most powerful engines Chevrolet Performance has ever offered in a regular-production car. This crate version delivers 650 horsepower and 650 lb-ft of torque straight out of the box, making it a serious choice for builders putting supercharged power into restomods, pro-touring cars, and custom street machines. It ships as a long-block assembly with the supercharger already in place, so the heavy engineering is done. Buyers shopping for an LT4 motor for sale are looking at the factory benchmark for forced-induction performance from engines and components.
Displacement is 376 cubic inches (6.2L) from a 4.065 x 3.622 in. bore and stroke, built on a cast aluminum block with 6-bolt, cross-bolted main caps. A forged steel crankshaft, forged powdered-metal connecting rods, and forged aluminum pistons handle the boost, with a 10.0:1 compression ratio holding pump-friendly numbers on premium 92+ octane fuel. The 1.7L Eaton R1740 supercharger generates more than 9 lbs of boost. A356T6 Rotocast aluminum cylinder heads use 65.5cc chambers with 2.130 in. intake and 1.590 in. exhaust valves, fed by direct injection and variable valve timing. The hydraulic roller camshaft runs 0.492 in. intake lift and 0.551 in. exhaust lift, paired with investment-cast roller-trunnion rocker arms at a 1.81:1 ratio. The unit redlines at 6,600.
This LT4 crate engine suits anyone swapping supercharged power into a pre-1976 street vehicle or an off-road build, though it is not intended for marine use. It arrives with intake manifold, throttle body, oil pan, valve covers, timing cover, water pump, harmonic balancer, and flywheel installed, so most of what you need to drop it in is accounted for. Plan your supporting hardware around it, from the right oil pan setup to belts and pulleys for your accessory drive. Chevrolet Performance backs the engine with a 24-month or 50,000-mile limited warranty per manufacturer specifications.
The 6.2L LT4 produces 650 horsepower and 650 lb-ft of torque. Those figures come from the 1.7L Eaton R1740 supercharger generating more than 9 lbs of boost on the Gen V small-block V-8 architecture, which is the same engine found in the Corvette Z06.
It ships with the intake manifold and fuel injection, cylinder heads, throttle body, oil pan, valve covers, timing cover, water pump, harmonic balancer, and flywheel already installed. The supercharger is in place as well, so the engine arrives as a complete assembly ready for your supporting hardware.
The LT4 runs on premium pump fuel rated at 92 octane or higher. The 10.0:1 compression ratio combined with more than 9 lbs of boost from the supercharger means premium is required to support the 650-horsepower output without detonation.
Per manufacturer specifications, this engine is intended for pre-1976 street vehicles or off-road vehicles, and is not intended for marine applications. It is a common choice for restomods, pro-touring builds, and custom street machines that need factory supercharged power.
Yes. Chevrolet Performance backs the LT4 with a 24-month or 50,000-mile/80,000-kilometer limited warranty per manufacturer specifications. Coverage terms depend on the intended use of the vehicle the engine is installed in.
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