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Edelbrock 7890 - Edelbrock Accu-Drive Timing Gear Drive



Edelbrock 7890 - Edelbrock Accu-Drive Timing Gear Drive
Edelbrock 7890 - Edelbrock Accu-Drive Timing Gear Drive

JEGS Part Number: 350-7890

Accu-Drive Gear Drive
  • 1957-95 Small Block Chevy
    • Fits Applications:
    • 1977-1980
      BUICK
      1957-1995
      CHEVROLET
      1967-1995
      GMC
    • Click to see All

    Edelbrock 7890 Details

    Chevy Gear Drives

    Accu-Drive® Notes:
    On some late-model engine blocks, it will be necessary to check clearance behind cam gear at the engine block at the 12 o'clock position. Make sure gear clears oil galley bosses on block when in the most rearward position. Grind or machine block for clearance. Clean block before assembling. Not applicable to stock Chevy hydraulic roller-lifter cam-equipped engines.

    Edelbrock Accu-Drive Timing Gear Drive

    The Accu-Drive camshaft gear drive kit replaces a stock timing chain with a precision gear drive system. Gear drives are easily installed - Just replace the stock crank and camshaft sprockets with Accu-Drive gears and slip in the idler assembly. The Accu-Drive gear drive system transmits power from the crankshaft gear to a full floating main idler which drives the camshaft gear. The unique feature of the Edelbrock Accu-Drive system is the ability of the main idler gear to float to an optimum position between the crankshaft and camshaft gears assuring absolutely equal load sharing between the crankshaft and the camshaft gears.

    Important Note: Accu-Drive Gear Drives are not recommended for use above 7,000 rpm or on computer-controlled vehicles with knock sensors.

    Items similar to Edelbrock 7890

    Edelbrock 7890

    Gaskets Included
    No
    Camshaft Gear Attachment
    3-bolt
    Gear Drive Idler Style
    Dual idler
    Gear Material
    Steel billet
    Maximum Advance/Retard at Camshaft
    4 degree
    Maximum Advance/Retard at Crankshaft
    2 degree
    Noisy
    No
    Offset Bushings Included
    No
    Quantity
    Sold individually
    Thrust Bearing Included
    Yes
    Manufacturer's Part Number:
    7890
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