That's why Jesel rocker arms are so long and their pattern is so good. It also provides maximum pucker factor, especially at Pocono. That's hard on a motor. On a short track, the r.p.m.s are up and down so fast, it's not tough on a motor. That's why a short track motor should never break.
Parts are so good now, failure is very rare.
That's not to say there hasn't been a blown motor. A lot of guys will take a motor apart, find a broken piece and say it failed. But really, that part broke because the builder did something wrong. When one piece turns a motor into many pieces, Cola says it's usually because a part was junk before it came out of the box. Offshore parts and substandard equipment still account for blown budgets.