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Product Summary

Chevy Small Block V8, Chevy 90-Degree V6

    Key Specs

    MFG. Part #7890
    BrandEdelbrock

    Need To Know

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    Details

    The Accu-Drive camshaft gear drive kit replaces a stock timing chain with a precision gear drive system. The gear drive can be easily installed. Just replace the stock crank and camshaft sprockets with Accu-Drive gears and slip in the idler assembly. Most Accu-Drives require no modifications to the engine block, although some fitting of the axles and front cover may be required. The Accu-Drive gear drive system transmits power from the crankshaft gear to a full floating main idler which drives the camshaft gear. A 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. The gears are made from billet SAE-1144 steel with induction hardened teeth. Gear teeth are shaved for precision operation. The set features hardened and ground idler pins from billet steel.
    • Precision Gear Drive System
    • Accurate Timing Control
    • No Chain To Stretch
    • Smooth Cam Rotation For Precise Valve Timing
    • Accurate and Multiple Cam Timing Settings
    • Compatible With All Standard Camshafts

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    Specifications

    KEY SPECS
    MFG. Part #7890
    BrandEdelbrock
    GENERAL
    GTIN Code085347078905
    Sold in QuantityEach
    NotesNot designed to work on engines with a knock sensor.
    Gear Attachment3-Bolt
    Gaskets IncludedNo
    Gear Drive Idler StyleDual Idler
    Retard at Camshaft4 degree
    Retard at Crankshaft2 degree
    Thrust Bearing IncludedYes
    Offset Bushings IncludedNo
    Gear MaterialSteel