Help me please!!
I recently broke a rocker arm cover bolt when replacing it. Probably over torqued it. I believe the part number is 10201396. I've gotten the old bolt drilled out of the hole but I damaged the threads and I need to rethread it. The information I need is a specs on the bolt is it an M8 or an m10 what are the distances between the threads and the thread depth etc. Also any tips on rethreading the bolt hole would be most helpful.
Vehicle is 2001 LT with the 4.3 vortec two-wheel drive

 

I would take out the same bolt on the other side and measure it to get the specs. I can't imagine why they'd be any different. And I think the heads are interchangeable from L to R.

All the valve cover bolts are likely the same anyway.

 

Would need a picture. It they used still the same bolts as on the 1st gen it would be a fine thread. The long bolts are special, M8x1 mm i think.

And just to make sure, you may want to post a pic of the stripped bolt.