HEI Distributor Tune-Up Kit

The PROFORM HEI Distributor Tune-Up Kit (SKU PFM66945RC) is a complete maintenance and restoration solution for General Motors HEI distributors. This all-in-one kit supplies every wear component and wear-prone part necessary to restore an aging HEI ignition system to like-new condition, making it the preferred choice for engine builders, restoration specialists, and hot rodders working with classic and vintage GM muscle cars and trucks.

The kit includes a replacement distributor cap, ignition coil, rotor, dust cover, vacuum advance assembly, ignition module, and all necessary fasteners and hardware. Each component is engineered to original GM specifications, ensuring drop-in compatibility with HEI distributors used across GM's V8 and six-cylinder platforms from the 1970s onward. The bright red coil provides instant visual identification of a freshly tuned ignition system and serves as a quality indicator for completed restorations. By replacing the cap, rotor, and coil together as a matched set, ignition timing consistency and firing reliability improve significantly compared to replacing individual components over time.

This tune-up kit targets owners restoring Chevrolet, Pontiac, Oldsmobile, and Buick vehicles equipped with factory HEI ignition systems. Whether rebuilding a 454 big-block, a 350 small-block, or a six-cylinder engine, having all wear items and consumables in one package eliminates multiple trips to suppliers and ensures the distributor receives balanced, factory-correct replacement parts. The kit weighs 4.18 pounds and ships in compact packaging, making it practical to stock for shops, collectors, and enthusiasts.

HEI systems became the industry standard for GM ignition after their 1974 introduction and are prized for their reliability, simple operation, and robust design. A complete tune-up kit ensures that when an HEI distributor is serviced, all internal components—cap, rotor, coil, and module—are replaced simultaneously, eliminating the risk of premature failure from mixing old and new parts or from overlooked wear in secondary components.