Page 10 of Cams & Accessories 2008 by Edelbrock

power pkg kits superchargers crate engines carbs access fuel pumps gaskets install items manifolds efi heads cams access nitrous water pumps access exhaust suspension shocks qwikdata index gear drives 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 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 gear drive #7890 · accurate timing control no chain to stretch · smooth cam rotation for precise valve timing · provides multiple cam timing adjustments for optimum performance · compatible with all standard camshafts chevy 262-400 v8 1957-95 7890 chevy 396-454 v8 1965-90 7891 ford 289-302 v8 1962-85 351-windsor 1969-96 7892 ford 5.0l 1985-95 hydraulic roller lifter cams 7892 ford 351c v8 not for 351m/400 7896 ford 429-460 v8 1968-87 7894 pontiac 326-455 v8 1955-82 7895 accu-drive #7891 accu-drive #7894 important note accu-drive® gear drives are not recommended for use above 7,000 rpm or on computer-controlled vehicles with knock sensors 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 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 accu-drive #7895 accu-drive #7892 the main idler gear floats to an optimum position between the gears assuring equal load sharing between the crankshaft camshaft gears hardened steel pushrod sets accu-drive #7896 steel pushrods #9630 for use in engines with or without hardened steel guideplates manufactured from case-hardened tubing with a surface hardening and welded ends for maximum durability 5/16 in diameter sold in sets of 16 amc 343-401 8.065 9637 buick 400-430-455 9.655 9605 s/b chevy 7.800 stock length 9630 s/b chevy 7.900 9629 s/b chevy 7.191 for hyd roller lifters 9653 b/b chevy 8.60 7.64 for hyd rollers 9654 ford 289-302 6.805 9632 ford 289-302 6.385 for hyd rollers 9655 ford 351w 7.634 for hyd rollers 9656 ford 351m/400 9.508 9633 magnum 5.2l/5.9l 6.936 9638 not legal for sale or use on pollution controlled motor vehicles www.edelbrock.com 181

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