Whoever honda 3370 is on the other site said that he made the pistons.Maybe someone can ask him if he knows but I wouldn't know how to contact him or who he is. Regards chris.tbpmusic said:Chris -
OK, I didn't respond till now because I'd never seen it (cams without o-rings) before, and I've seen a LOT of 450's.
Here's an EBay listing - looking at the photos, these cams don't seem to have o-rings either.
Sorry I can't offer an explanation......