Replaces GM HEI Distributors that use a 4-Pin ignition module. 2021-gmc-sierra-1500-base-esi1656749 The distributor is supplied with

The distributor is supplied with our Digital HEI Module and Coil so there is plenty of spark energy combined with improved dwell and timing control

van or SUV fully protected

Why choose your remote starter from Mchip Performance

Mount Kit And Hardware Included

Explorer nut kit (compatible with 428 hubs)

Replaces GM HEI Distributors that use a 4-Pin ignition module. 2021-gmc-sierra-1500-base-esi1656749 The distributor is supplied withMSD answers the need for a strong, accurate and high performance HEI with our Pro Billet HEI. The distributor is supplied with our Digital HEI Module and Coil so there is plenty of spark energy combined with improved dwell and timing control.