Accu-Drive® Camshaft Gear
Drives
- 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. 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.
Chevy 262-400 V8 (1957-95).....#7890*
Chevy 396-454 V8 (1965-90).....#7891*
Ford 289-302 V8,
351-Windsor (1962-85)..........#7892*
Ford 5.0L (1985 and later
hydraulic roller lifter cams)..#7893*
Ford 351-C V8..................#7896*
Ford 429-460 V8 (1968-87)......#7894*
Pontiac 326-455 V8.............#7895*
Accu-Drive®
Notes
#7890
-
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.
#7892 - On 1962-64 vehicles,
discard original spacer and thrust plate. Use Ford
thrust plate #C9OZ-6269-A. On 1965-72-1/2 vehicles,
discard original 2-piece eccentric. Use 1-piece
eccentric Ford #C3AZ-6287-B. |
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Accu-Drive #7890
Accurate timing control... no chain
to stretch
Smooth cam rotation for
precise valve control
Provides Multiple cam timing
adjustments for Optimum Performance
Compatible with all standard
camshafts |
