fixing a 916 head tat broke a belt and bent all the valves. was going to use a some valves from a 748 head that i saved, because they are supposed to be the same. cant use the valves because they measure 17.5mm tall were as the valves need to be 106.5mm. the valves measure 33 & 29 mm. arent 748 and 916 valves supposed to be the same except for the 2002 lower head? cant cut the valves and taking 1mm off the shims doesnt work either. any one got some correct valves, need 2 intakes and 1 exhaust as i have one good one.