Hey folks, It’s been a while since I’ve popped in here and/or touched my motor while rebuilding. I got to the point of putting the heads back on and I get 6/8 on one of the heads torqued to the 33 ft lbs requirement but the last two are stripped out. Just spin in the hole. Have any of you guys helicoiled these before? If so do you know the exact pitch of the bolts? All I know is 9x93. Thanks for any advice! 1990 vfr 750