what size hex key do you use to remove headbolts from a 82 gmc s15 with a 1.9 engine?

Answer 1

It isn't a hex key. It is a TORX bit. I think the size is T-45, but I may be wrong. Best to measure it as well as you can, then go to the parts store and purchase the right one. Be sure that you get not only the right size, but the right shape as well. Clean out one of the sockets very well and measure ind identify.

Good Luck