Quote Originally Posted by BABY J
It IS an interference motor... but let me load up some cross-sections and I will show you WHY you can snap a timing belt on a D at 3k RPMs and NEVER hurt the head, vs a B at idle and trash it. Gimme a sec.
i dont care about what a spec sheet says.

PERSONAL EXPERIENCE:
Keirons GSR, cam bolt backed out, lost a cam gear an keyway at 2500rpms, bent 1 valve.

SOHC D series , jumped timing AT IDLE, bent a valve

A timing belt controls the piston TDC and the valve opening. if you seriously think that they arent interference motors, go put an adjustable cam gear on a SOHC, advance it to 10 degrees, an let me know what happens