I used bushings that Carrillo has for their H-beam rods. They were .975 on the OD, and were the smallest I was able to find. This allowed to keep the boring of the S/E's to a minimum for making them full floating with a bushing. But, we bought the GM pink rods in bulk quantities of a hundred or so at a time, and I often had to select them by hand to get a set that the pin bore was as close to being centered as possible. Never had a failure in one in the many dirt track engines we built. They would turn 8500-8800 RPM 50 laps at a time for a season or two with no problems. But they only had a 400 gram piston hanging on the end of them also.
