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The LSX 454 crate engine is a 21st-century upgrade to the legendary Chevy 454 big block race engine. Learn more about dyno specs, installation & more.
- Compare LSX Engines
See how Chevy Performance LSX Crate Engines compare in...
- Compare LSX Engines
Our Chevrolet Small Block LSX 454 crate engines offer an impressive 627 horsepower and are equipped with the latest technology. Plus, the Chevy LSX 454 is lighter than its big block predecessor. Find the Chevy LSX 454 at JEGS High Performance!
Lighter and more compact than an original Big-Block 454, the LSX 454 is filled with a super-tough rotating assembly and features a pair of our deep-breathing CNC’d ported cylinder heads. type: 7.4L Gen-IV V-8 Small-Block. displacement: 7400 cc (454 ci) engine orientation: NA. compression ratio: 10.0:1. valve configuration: Overhead valves.
See how Chevy Performance LSX Crate Engines compare in horsepower, torque & other specifications so you can make the right choice for your project car.
22 wrz 2024 · Topped with a dual-plane intake manifold ready to accept your carburetor, the 454HO is capable of producing up to 438 horsepower and 500 lb-ft of torque. With 469 horsepower and 519 lb-ft of...
With a carburetor and high-flow GM Performance Parts intake manifold, the LSX454 is good for about 620 horsepower and 600 lb-ft of torque —or about 580 hp and 600 lb-ft. with fuel injection. NOTE: Due to the number of application variations, the LSX454 crate engine does not include an oil pan.
Other key features of this LSx 454 supercharged engine include a boost-ready design, forged rotating assembly, six-bolt cylinder heads and a hydraulic roller cam for reduced wear and friction. We also carry a 440ci LS7 edition that delivers the same jaw dropping 700 horsepower. Peak Horsepower: 725bhp @ 6700 rpm Peak Torque: 580lb/ft @ 5200 rpm
