Edelbrock Accu-Drive Gear Drive B/B Chevy

If you're working on a big-block Chevy and looking to get the most precise valve timing possible, this Edelbrock Accu-Drive gear drive kit is a solid option. It replaces your stock timing chain with a compound gear drive system. This means no more chain stretch to worry about, and you get a smooth, consistent rotation for your camshaft. This is especially helpful when you're trying to dial in your engine's performance for optimal power. The kit fits a wide range of big-block Chevy applications, including popular models like the Chevrolet Impala and Chevelle from the 60s and 70s.

Edelbrock designed this gear drive for straightforward installation. You'll swap out the stock crank and camshaft sprockets for the included Accu-Drive gears and then install the idler assembly. The main idler gear has a unique floating design that lets it find the perfect position between the crankshaft and camshaft gears. This ensures an even load distribution between them, which is key for longevity and accuracy. The gears themselves are made from billet SAE-1144 steel with induction-hardened, shaved teeth for precision operation. The idler pins are also hardened and ground from billet steel, and the whole setup is compatible with standard camshafts.