Moroso 97857 Moroso GM HEI Durafire Ignition Module (Replacement for Part No 72230/72231)

Replacement Ignition Module Fits: GM-style HEI Distributors

• Fits Moroso DuraFire Distributor No. 72231 and any 4-pin GM HEI Distributor for 4, 6 and 8 cylinder engines
• Module delivers consistent dwell, accurate timing, extended durability and high spark output