Performance 4-Pin Ignition Control Module Replacement for HEI Distributors Compatible with Chevy GM Oldsmobile Pontiac D1906
OE-Style replacement for Delco 19180771
4-Pin module for use with the GM (Chevy, Oldsmobile, Pontiac, and Buick) Large Cap distributors. It will also work on aftermarket Ford and Mopar HEI distributors that have the large GM style cap (coil-in-cap). These are for Carbureted vehicles.