Please help....

[Tabone777]

Ok here is the deal I have a 67 chevy stepside with a 350 in it. The other day im driving down the road and I hear a clunk and look out the window and see something rolling down the road. I pull over and notice that the harmonic balancer and pulley had came off. I noticed that the crank threads are now stripped out a lil bit.

I wanted to get the crank helicoiled so I called a automotive shop and they wont do it. So im considering helicoiling the crank myself. I have never done this and was hoping someone could give me a good break down on what to do. I saw o'reillys has a helicoil kit you can purchase but dont know what size i need.

Also the pulley and harmonic balancer are trash now and I dont have the bolt that came out either. Should I go to a junk yard and pull the pulley and harmonic balancer or just by a new one. Is there a specific size balancer I will need? What size bolt will i need now?

Sorry for alll the questions. anyone's help would be appreciated.