Here’s the ignition module in my hand, and the heat sink. Note that this unit apparently had heat sink compound applied at the factory (unless someone did the maintenance, which I highly doubt).I’ve ...

Originally, the HEI system was fitted with a four-pin module. By 1978, it had a five-pin unit. Seven and eight-pin modules were more a computer-controlled element that came around in the 1980s. By ...

Follow along as we install this new MSD Digital-6 ignition control module on our off road truck! See all the details and every thing that comes with this MSD unit in this months issue of Off-Road ...