Edelbrock Accu-Drive Gear Drive S/B Chevy

If you're rebuilding the front end of your small-block Chevy and want a more precise way to manage camshaft timing than a stock chain, consider this Edelbrock Accu-Drive gear drive. This system replaces the flexible timing chain with a direct gear-to-gear setup, which means no more worries about chain stretch affecting your valve timing. It's a solid option for engines that need consistent, accurate timing, especially when you're looking to optimize performance. This gear drive fits a wide range of small-block Chevy applications, from classic C10 trucks to Camaros and Corvettes.

The Accu-Drive system uses a compound gear train where power transfers from the crankshaft gear to a floating idler gear, which then drives the camshaft gear. A neat feature here is that the main idler gear floats to find its ideal position between the crank and cam gears, ensuring an even load distribution. The gears themselves are made from billet SAE-1144 steel with induction-hardened teeth that have been shaved for smooth, precise operation. It also includes hardened and ground idler pins, and it's designed to work with all standard camshafts without needing major engine block modifications, though some minor fitting of the axles and front cover might be necessary.