What is the main advantage of using a gear drive over a timing chain?

A gear drive eliminates the timing chain, which can stretch over time and affect valve timing accuracy. The gear drive provides a more direct and stable connection between the crankshaft and camshaft, ensuring precise timing control and smooth cam rotation.

Will this gear drive fit my specific Pontiac engine without modifications?

Most Accu-Drive gear drives require no modifications to the engine block. However, some fitting of the axles and front cover may be necessary depending on your specific engine application.

What materials are the gears and pins made from?

The gears are made from billet SAE-1144 steel with induction-hardened teeth that are shaved for precision. The idler pins are also made from billet steel and are hardened and ground.

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Specifications

Brand: Edelbrock
Part #: 7895
UPC: 85347078950

Edelbrock Accu-Drive Gear Drive Pontiac

Name: Edelbrock Accu-Drive Gear Drive Pontiac
Brand: Edelbrock
Price: 449.86 USD
Availability: InStock

$449.86

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Edelbrock Accu-Drive Gear Drive for Pontiac 326-455 V8 engines. Replaces timing chain with precision gear drive for accurate timing.

Key Features

Fits Pontiac 326-455 V8 engines, including models like the Bonneville, Catalina, Firebird, and GTO.
Replaces the stock timing chain with a precision gear drive system for accurate timing control.
Features a compound gear drive train with a full floating main idler gear for equal load sharing.
Gears are constructed from billet SAE-1144 steel with induction-hardened and shaved teeth.
Includes hardened and ground idler pins made from billet steel.
Compatible with all standard camshafts.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're working on a Pontiac V8 engine, like those found in a 1965-1978 Bonneville or a 1967-1979 Firebird, and you're looking to get the most precise valve timing possible, consider the Edelbrock Accu-Drive Gear Drive. This system replaces your stock timing chain with a compound gear drive train, offering a more direct and stable connection between the crankshaft and camshaft. This means no more worries about a stretched timing chain affecting your engine's performance or valve timing accuracy.

The Accu-Drive system is designed for straightforward installation, typically requiring you to swap out the stock crank and camshaft sprockets for the included Accu-Drive gears and then install the idler assembly. While most applications fit without major engine block modifications, some minor adjustments to the axles or front cover might be needed. A unique aspect of this Edelbrock design is the main idler gear's ability to float into an optimal position, ensuring an even load is distributed between the crankshaft and camshaft gears. The gears themselves are well-built from billet SAE-1144 steel with induction-hardened, shaved teeth for smooth operation and accurate timing control. The set also includes hardened and ground idler pins made from billet steel, and it's compatible with all standard camshafts.