LSX454 454ci Engine
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CHEVROLET PERFORMANCEPART NUMBER: 809-19417357

LSX454 454ci Engine

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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.

    809-19417357 supersedes 809-19355573

     

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

  • Part TypeEngine
    BrandCHEVROLET PERFORMANCE
    Package Height37.0
    Package Width37.0
    Package Length41.0
    Weight536.0 PG
    Part CategoryPerformance Parts
    Cylinder Head MaterialAluminum
    Engine Block MaterialCast iron
    Universal Or Specific FitUniversal
    Rocker Arm Ratio1.8:1
    Maximum Rpm (Rpm)7100
    Exhaust Valve Lift (In)0.648"
    Engine Make/SizeGM Gen III/IV LS
    Transmission TypeF
    Compression Ratio11.0:1
    Engine TypeHigh-Performance Crate Engine
    Main Bearing Cap Bolt Quantity6
    Maximum Torque (Ft-Lb)586 lb.-ft. at 5100 rpm
    Intake Valve Lift (In)0.648"
    BalancedInternal
    Part FitmentSemi Universal
    Engine Displacement7.4L
    Weight (Lb)525
    Horsepower (Hp)627 hp at 6300 rpm
    Grade TypePerformance
    Vendor Part Number19417357
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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    Some parts are not legal for use in California or other states with similar laws / regulations
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