I put a high output 5.0l in my mustang II with a C4 trans. I had bought a Art Carr 50oz imbalance flexplate and it all worked out fine. I wrecked the ring gear, so I was going to order a new flexplate, but Art Carr is out of business. Does anybody else make one?
I spoke to the real Mr. Art Carr! And he still has P/N23115 Mustang II 141 tooth 50oz. imbalance Flex Plates for putting a 5.0L H.O into a Mustang II with a C4. Happy Day