Edelbrock Small Block Chevy Accu-Drive Gear Drive

Edelbrock introduces part #7890 Accu-Drive Camshaft Gear Drive Kit designed for small-block Chevy engines, replacing the stock timing chain with a sophisticated precision gear drive system incorporating a compound gear train. The installation process is straightforward – replace the stock crank and camshaft sprockets with Accu-Drive gears and insert the idler assembly. While most Accu-Drives typically necessitate no modifications to the engine block, some adjustments to the axles and front cover may be required.

This Accu-Drive camshaft gear drive system for small-block Chevy engines efficiently transmits power from the crankshaft gear to a fully floating main idler, which subsequently drives the camshaft gear. A standout feature of the Edelbrock Accu-Drive system is the main idler gear's unique ability to float to an optimal position between the crankshaft and camshaft gears. This ensures absolute load sharing equality between the crankshaft and camshaft gears.

Crafted from billet SAE-1144 steel with induction-hardened teeth, the gears undergo precision shaving for seamless operation. The set includes hardened and ground idler pins made from billet steel, offering compatibility with all standard camshafts. Key features of the part #7890 Accu-Drive Camshaft Gear Drive Kit include:

• Accurate timing control with no chain to stretch.
• Multiple cam timing adjustments for optimizing performance.
• Smooth cam rotation, ensuring precise valve timing.