Electronic ignition mounting plate for Conversion

Those brackets are an aftermarket piece. They were originally designed, so you didn't have to drill holes in your car. Mainly on Cudas, Roadrunners,and Chargers . They had nothing to do with heat, although it wouldn't hurt. They were also, never designed for A body's, so in my opinion you don't need it. You do want to mount your ECU in a cool place. Up on the fender apron is generally, one of the better places. For a slant six, this is a great spot. Its cool, and easier to hook up your wiring.