Just tore down our oldest 512RB. We have been racing one for 15 years, and we just pulled it apart, the hone was gone, and a valve lock/keeper was broken, and it was about to drop a valve....No other issues we could find. Everything else was really good....So no, I don't think so. Last pass on that engine at the end of the season was 10.76 at 125mph....

The motor was always well tuned, and rpm generally kept in the safe zone....But we ran a lot of timing, and a 1050 on her, so it saw a lot of fuel and was generally shifted between 6k-6.5k....Super consistent round to round, and just a beast. Quickest pass on it was 9.70 at 138.5mph...