LSX454 454ci Engine 627 HP @ 6300 RPM
InfoVehicle Info Needed
CHEVROLET PERFORMANCEPART NUMBER: 809-19355573

LSX454 454ci Engine 627 HP @ 6300 RPM

$12,01099
Truck Freight
ShippingShips on 09/14/2026
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LSX454 454ci Engine
    LSX454 454ci Engine
  • 627 HP @ 6300 RPM
  • 586 ft/lbs TQ @ 5100 RPM

    INSTALLATION NOTES:
  • Assembly does not include any electronics
  • Intended for pre-1976 street vehicles or any off-road vehicle
  • Not intended for marine applications
  • Requires LSX Ignition Controller (p/n 809-19171130) when using a carburetor
  • Requires the purchase and installation of an oil pan (dust shield installed for shipment)
  • LSX 8-bolt crank flange
  • Requires premium fuel

    Engine Break-In Procedure

    Use only engine oil that meets dexos1 specifications. For track events or competitive driving, use Mobil 1 15W-50 engine oil. Fill the engine with oil and follow the proper engine priming procedure.  Also check and fill as required any other necessary fluids such as coolant, power steering fluid, etc.

    Start the engine and listen for any unusual noises. If no unusual noises are noted, run the engine at approximately 1000 RPM until normal operating temperature is reached.  The engine should be driven at varying loads and conditions for the first 30 miles or one hour without wide open throttle (WOT) or sustained high RPM accelerations.  Run five or six medium throttle (50%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear. Run two or three hard throttle (WOT 100%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear. 

    Change the engine oil and filter. Inspect the oil and the oil filter for any foreign particles to ensure that the engine is functioning properly.  Drive the next 500 miles (12 to 15 engine hours) under normal conditions. Do not run the engine at its maximum rated engine speed. Also, do not expose the engine to extended periods of high load.  Change the oil and filter again, inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly.

     

Part TypeEngine
BrandCHEVROLET PERFORMANCE
Package Height32.0
Package Width40.0
Package Length40.0
Weight530.0 PG
Part CategoryPerformance Parts
Engine Displacement7.4L/454
Package Qty1
Package TypeEA
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