Specifications
The LT4 engine, part of GM’s Gen V Small Block family, is engineered for extreme performance while maintaining reliability and drivability. Its 6.2-liter V8 supercharged design incorporates an aluminum block and cylinder heads to reduce weight, along with forged steel crankshaft, connecting rods, and high-strength pistons to handle high boost pressures. The engine features direct fuel injection (DFI), Active Fuel Management (cylinder deactivation), and continuously variable valve timing (VVT), all of which optimize power delivery, fuel efficiency, and emissions. The Eaton R1740 TVS supercharger sits at top of the engine, generating roughly 650 horsepower at 6,400 rpm and 650 lb-ft of torque at 3,600 rpm, giving vehicles explosive acceleration.
Additionally, the LT4 engine includes advanced cooling systems, like an integrated intercooler and high-capacity radiators, ensuring consistent performance even under track conditions. With its combination of high output, modern efficiency technologies, and robust engineering, the LT4 is designed for both street dominance and track-ready performance.
Transmission Variant
Supercharged 6.2L V8 LT4
The LT4 engine is GM’s flagship high-performance small-block engine, built around a 6.2-liter aluminum V8 with a factory-equipped 1.7-liter Eaton TVS supercharger. It produces about 650 horsepower and 650 lb-ft of torque, its forged pistons, a high-strength crank, high-flow Rotocast A356-T6 aluminum cylinder heads, and an efficient intercooling system is designed to manage the added heat of forced induction. With a 10.0:1 compression ratio and advanced direct injection, the LT4 delivers immense low-end torque and sustained power at high RPM, making it ideal for extreme performance builds, track cars, and high-output street applications.
LT4 Crate Engine
The LT4 Crate Engine is part of GM’s Gen V small-block family and is engineered for maximum performance and reliability. It uses Aluminum heads and block to reduce weight while maintaining strength, and features a high-lift camshaft for increased airflow and power. The engine includes advanced technologies such as Active Fuel Management, direct injection, and variable valve timing, which together optimize performance and efficiency. Its supercharged Eaton TVS 2300 rotor assembly provides immediate boost response, and the engine is capable of revving up to 6,500 RPM, making it ideal for street, track, or drag applications.
Designed as a complete crate engine, it comes with all necessary accessories including fuel system components, intake manifold, and pulleys, allowing for straightforward installation in compatible vehicles. Its combination of lightweight construction, advanced electronics, and supercharged performance makes the LT4 a benchmark in modern American muscle engines.
Frequently Asked Questions
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What vehicles can the GM LT4 Engine fit?
It fits high-performance GM models like the Corvette Z06, Camaro ZL1, and CTS-V, as well as custom swap projects.
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What’s the horsepower rating of the LT4 Engine?
The LT4 engine produces up to 650 horsepower and 650 lb-ft of torque, depending on the configuration.
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Are these crate engines new or used?
Tagore Auto Parts provides tested used and remanufactured LT4 crate engines, ensuring OEM fit and reliability.
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Is the LT4 suitable for engine swaps?
Absolutely. Its compact design and proven performance make it ideal for restomods and custom performance builds.
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Does the LT4 engine come with a warranty?
Yes, all GM LT4 Crate Engines from Tagore Auto Parts include a limited parts warranty for peace of mind.
GM LT4 Engine
