Summit Racing™ high-output 4-pin HEI performance modules feature a longer dwell time for better coil saturation. This equates to a hotter spark and better performance for your HEI setup.

4 Pin Performance Ignition Module 1974-1988 for Chevy Pontiac Olds Buick 289 50+ bought in past month $999

This GM HEI module works the same at a tiny fraction of the cost. Mount this outside the distributor and run wires from the magnetic pickup to it from inside the distributor.

Great for street, racing, off-road and marine applications. Installation is easy as the Dyna-Mod mounts in the stock location of an HEI module with no modifications. Fits all V8, 6 Cylinder and 4 Cylinder …

PerTronix HEI Performance Ignition Modules are direct replacements for popular GM and Ford electronic distributors. These modules provide enhanced high RPM performance and when used …

1 PC Automotive Ignition Module, 4 Pin gnition Control Module, Replaces OEM Part Number 150058 / DM1906/ LX301, Compatible with 1974-1988 for Chevy Pontiac Olds Buick (Black)

Nov 16, 2021 · Prior to spark, peak current level is reached for maximum energy without heat build-up, increasing coil performance and module reliability. Adjusts spark timing at higher RPMs, …

This high performance HEI module provides your plugs with more spark over the stock module. The solid state electronics provide high coil out put and superior reliability.