Edelbrock part #7891 Accu-Drive camshaft gear drive kit for big-block Chevy engines replaces a stock timing chain with a precision gear drive system utilizing a compound gear drive train.
Edelbrock part #7891 Accu-Drive camshaft gear drive kit for big-block Chevy engines replaces a stock timing chain with a precision gear drive system utilizing a compound gear drive train. 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. This Accu-Drive camshaft gear drive kit for big-block Chevy engines 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 and are compatible with all standard camshafts. Features Include: - Accurate timing control..No chain to stretch - Provides multiple cam timing adjustments for optimum performance - Smooth cam rotation for precise valve timing
  • 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

Application Summary:

Year Make/Model
1965-1975 Chevrolet Bel Air
1965-1972 Chevrolet Biscayne
1973 Chevrolet Blazer
1972 Chevrolet Brookwood
1975-1980 Chevrolet C10
1968-1974 Chevrolet C10 Pickup
1968-1980 Chevrolet C10 Suburban
1990 Chevrolet C1500
1975-1986 Chevrolet C20
1968-1974 Chevrolet C20 Pickup
1968-1986 Chevrolet C20 Suburban
1975-1986 Chevrolet C30
1968-1974 Chevrolet C30 Pickup
1988-1990 Chevrolet C3500
1967-1972 Chevrolet Camaro
1966-1976 Chevrolet Caprice
1966-1973 Chevrolet Chevelle
1968 Chevrolet Chevy II
1966-1974 Chevrolet Corvette
1966-1975 Chevrolet El Camino
1973-1974 Chevrolet G10 Van
1976 Chevrolet G20
1973-1974 Chevrolet G20 Van
1975-1976 Chevrolet G30
1988-1990 Chevrolet G30
1973-1974 Chevrolet G30 Van
1965-1976 Chevrolet Impala
1976 Chevrolet K10
1980 Chevrolet K10
1968-1969 Chevrolet K10 Pickup
1974 Chevrolet K10 Pickup
1968-1972 Chevrolet K10 Suburban
1976-1978 Chevrolet K20
1968-1969 Chevrolet K20 Pickup
1973-1974 Chevrolet K20 Pickup
1973 Chevrolet K20 Suburban
1985 Chevrolet K20 Suburban
1977 Chevrolet K30
1980-1986 Chevrolet K30
1968-1971 Chevrolet K30 Pickup
1973-1974 Chevrolet K30 Pickup
1988-1990 Chevrolet K3500
1976-1978 Chevrolet K5 Blazer
1970-1972 Chevrolet Kingswood
1973-1975 Chevrolet Laguna
1966-1967 Chevrolet Malibu
1973-1975 Chevrolet Malibu
1970-1975 Chevrolet Monte Carlo
1969-1970 Chevrolet Nova
1987-1988 Chevrolet R20
1987-1988 Chevrolet R20 Suburban
1989 Chevrolet R2500
1989-1990 Chevrolet R2500 Suburban
1987-1988 Chevrolet R30
1989-1990 Chevrolet R3500
1970 Chevrolet Townsman
1972 Chevrolet Townsman
1987-1988 Chevrolet V20 Suburban
1990 Chevrolet V2500 Suburban
1987-1988 Chevrolet V30
1989-1990 Chevrolet V3500
1975-1978 GMC C15
1975-1978 GMC C15 Suburban
1968-1974 GMC C15/C1500 Pickup
1968-1974 GMC C15/C1500 Suburban
1979-1980 GMC C1500
1979-1980 GMC C1500 Suburban
1975-1978 GMC C25
1975-1978 GMC C25 Suburban
1968-1974 GMC C25/C2500 Pickup
1968-1972 GMC C25/C2500 Suburban

Additional Information:

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