For the past 1-2 years I have always claimed that a 61X cylinder with a non-head mounted pipe didn't necessarily need a girdle kit.
Phill's X cylinder cracked in two this weekend. He's ran it at 84mm bore, 170psi pro-tec head, and B-pipe for about a year now.
At this weekend surf ride, he had to get towed back in. Upon opening the hood, we found the carb nuts missing (and carb hopping around loose on the studs) and the cylinder cracked.
Instant carnage.:biggthumpup:
So there you have it. Run a girdled head.
Phill's X cylinder cracked in two this weekend. He's ran it at 84mm bore, 170psi pro-tec head, and B-pipe for about a year now.
At this weekend surf ride, he had to get towed back in. Upon opening the hood, we found the carb nuts missing (and carb hopping around loose on the studs) and the cylinder cracked.
Instant carnage.:biggthumpup:
So there you have it. Run a girdled head.