High-Performance HEI Ignition Control Module for 1973-1989 GM Applications [4-Pin]

Name: High-Performance HEI Ignition Control Module for 1973-1989 GM Applications [4-Pin]
Brand: PROFORM
SKU: 778-66944C
Price: 34.99 USD
Availability: InStock

^$34⁹⁹

1 left in stock

Ships on Nov 02, 2026

Lowest Price Guarantee

Best Value

555-40600

HEI Ignition Control Module 4-Pin for 1974-1990 GM Car and Trucks

^$55⁹⁹

Replacement HEI Parts

High-Performance HEI Ignition Module

Fits 1973-1989 GM HEI Applications

4-Pin Design

Low Saturation for Maximum Spark Intensity

Direct Replacement for Factory Module

Sold Individually

The ignition module is the heart of an HEI distributor. This high-performance 4-pin module is a direct replacement for the factory unit in 1973-1989 GM HEI applications and is engineered with low saturation for maximum spark intensity.

Proform 66944C HEI Ignition Control Module Features:

Fits 1973-1989 GM HEI distributor applications
High-performance 4-pin module
Low saturation design for maximum spark intensity
Direct replacement for the factory module
Sold individually

Get the Best Value with an HEI Distributor Upgrade

Replace your stock distributor with a Proform HEI Distributor for an easy-to-install performance upgrade. You can trust Proform high-energy ignition (HEI) components to keep your engine running at peak performance.

Part TypeIgnition Control Module

Product LineProform High-Performance HEI Distributors & Accessories

BrandPROFORM

Package Height0.7

Package Width4.6

Package Length7.1

Weight0.14 PG

Part CategoryPerformance Parts

Ignition TypeHEI

Module Pin Quantity4

QuantitySold Individually

Part FitmentDirect Fit