CD Ignition Coil

The ALLSTAR PERFORMANCE CD Ignition Coil (ALL 81230) is a high-output capacitive discharge coil designed for street and competition vehicles running HEI distributor systems. Built for enthusiasts who demand reliable spark delivery and fast ignition timing response, this coil bridges the gap between stock performance and dedicated race applications. Whether you're tuning a carbureted engine or upgrading an older ignition system, this CD coil provides the consistent voltage rise needed for aggressive cam profiles and high-compression builds.

This CD Ignition Coil delivers 40,000 volts of peak output with a low 0.400-ohm primary resistance, enabling rapid magnetic collapse and superior spark plug firing. The E-core design concentrates magnetic flux efficiently, reducing power loss and heat generation during sustained rpm operations. The male HEI connector ensures direct compatibility with standard HEI distributors, while the 90-degree boot and terminal configuration accommodates tight engine bay layouts without forcing awkward wire routing. Black powder-coat finish resists corrosion and heat cycling, critical for reliability in high-temperature underhood environments.

This coil is ideal for mechanics and engine builders working on classic hot rods, street performance engines, and vintage muscle cars equipped with HEI distributors. Its 40,000-volt output excels in lean-burn and high-load conditions where marginal stock coils falter. Installation requires only disconnecting the factory HEI coil lead and swapping in this unit—no wiring modifications needed. Weighing 2.65 lbs and measuring 5.5 × 4.1 × 5.9 inches, it fits standard mounting positions without interference or additional brackets.