- 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-DriveŽ
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-DriveŽ 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.
Accu-Drive Gear Drives are not recommended for use above 7,000 rpm
or on computer-controlled vehicles with knock sensors. #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.
# 7890, Cost, $Call
Chevy 262-400 V8 (1957-95).....#7890, Shown
Chevy 396-454 V8 (1965-90).....#7891
Ford 289-302 V8,
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
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