The choices for replacement ignition coils on the LS-1 motor get expensive real fast. You have to wonder if the extra money for the brand names are really worth it. We did a fair amount of research, and settled on PerTronix, for the next set on our GT-2 race car. We are very familiar with the brand, and the specs looked good. This is pretty much a replacement for the GM truck coils, that went on the performance LS-1 motors, in the late 1990's. The headers on our motor run up past the valve covers, and put a lot of heat out, right by the coils. Plus they sit right on the valve covers anyway, which is a pretty hot area, as well.
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