the previous owner cross threaded my crank bolt and no that im puting everything back together(completed lt4 conversion and hotcam with all bolt ons) the bolt will not tighten. so I retaped one size up but corse thread and i got a new bolt the right kind to not just some chep lowes bolt and stuck it in thier with some blue lock tight. question i have it torques to 45 ftlbs i know that its supposed to be 65 but i feel like if i go any tighter it will strip it is strong enough however to turn the motor over. my question is did i fix this right some locals say that it will back out, one guy said that the engine is now unbalanced cause i took weight out of the crank but i didnt do any drilling just taping please help

 

You don't have a balance issue as you took a very small amount of metal out of the center line of the crank.

Another option is to buy a keyed hub. The Woodruff key will help to keep the hub/pulley from rotating under load.

 

I have had to helicoil a crank snout before....The motor is now 6 years old and been running fine ever since then at hi rpms, I did use a stainless helicoil and lock tite on the helicoil, none on the bolt tho just a lock washer

 

cool thanks guys i feel much better about it