Hi there i recieved a motor and it came without a flywheel that being said i had it built its an LS block im in the process right now of putting it back together and noticed that one of the crank hole(for flywheel) were stripped very bad beyond using a tap...my question is can i run it without one bolt? any help would be great thanks....i have all of the other flywheels bolts in but the one...

 

if u can not retap the threads and you don't want to helicoil it. u can run with out that one bolt but i would use red loctite on the rest of the threads that have bolts.
it will be fine. if u are wondering, u (will not) have any vibration, if one bolt isn't on.
unless your car is a track car, everything will be needed to be there.

 

my car isnt a track car....i thought i could maybe tap it i went to find a tap i need 12mm by 1.00 fine pitch NO ONE HAS IT....