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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

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

    JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.

  • 2 Products
    LSX 454ci Engine & Kits

    LSX 454ci Engine
  • 620 HP, 590 TQ
  • $9,556.99
    Order Today Ships

    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
  • Easy Kits
    Order Today Ships 09/03/15

    2 Products