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Chevrolet Performance LSX454 454ci/620HP Engine

Chevrolet Performance
Chevrolet Performance LSX454 454ci/620HP Engine

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Chevrolet Performance has created classic 454 cubic-inch displacement by combining the heavy-duty LSX block and LSX forged rotating assembly with the latest in LS engine technology. The high-flow "as-cast" aluminum LSX-LS7 port heads and upgraded forged pistons yield an 11 to 1 compression ratio that's still 92 octane friendly. This LSX454 street/strip terror with 620 horsepower (at 6200 RPM) and 590 ft/lbs torque (at 4800 RPM) is a perfect foundation for almost any high-performance project!

The engine is assembled without an intake manifold so you can top it with a carburetor or production-style injection system of your choice. Instead of an oil pan, the engine has only a dust cover so you can add what's correct for your application. Excluding parts you can't use is just another way to minimize cost!

  • 620 HP at 6200 RPM
  • 590 ft/lbs TQ at 4800 RPM
  • 4.185" Bore x 4.125" Stroke
  • Compression Ratio: 11 to 1
  • LSX Iron Block with 6-Bolt Cross-Bolted Main Caps
  • Camshaft: 236/246 Duration, .635"/.635" Lift (Hydraulic Roller)
  • Heads: Aluminum As-Cast LSX-LS7 Port with 70cc Chambers
  • Rocker Arms: 1.8 to 1 Investment-Cast, Roll Trunnion
  • Valves: 2.200 Titanium Intake, 1.610 Hollow Sodium-Filled Exhaust
  • Crankshaft: 4340 Forged Steel with 8-Bolt Flange
  • Connecting Rods: 4340 Forged Steel
  • Pistons: Forged Aluminum
  • Internally Balanced
  • Reluctor Wheel: 58X
  • Recommended Fuel: 92 Octane

    JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    Note: Standard GMPP 24-Month/50,000-Mile Crate Engine Warranty applies

  • 2 Products

    LSX 454ci Engine & Kits

    LSX 454ci Engine
  • 620 HP, 590 TQ
  • FREE

    LSX 454ci Engine Kit
  • 620 HP, 590 TQ
  • Fuel Injected
  • LSX 454 Crate Engine
  • LS7 Intake Manifold
  • LS Engine Retrofit Oil Pan
  • LSX 454 Engine Controller Kit
  • LS Ignition Coils
  • Oil Pan Gasket, Dipstick/Tube
  • FREE
    Easy Kits

    2 Products