Gm 4 Pin Hei Module Wiring Donna Sawayn 03 Nov 2023 Hei mopar chevy wiring style Chevy style hei on 318 chevy style HEI on 318 | For A Bodies Only Mopar Forum chevy style HEI on 318 | For A Bodies Only Mopar Forum Check Details ← Gm 350 Starter Wiring Gm 10si Wiring Diagram →