cost of a new head

How much would parts and labor cost to fix a head that had a blown out spark plug? Parst and labor to replace the head? Parts and labor to replace all the heads?

Need to know what year,make, and model. The cost of all of those things will vary greatly, depending on the affore mentioned specifications.
Jake

1995 pontiac trans am 5.7L

Well, that is a bad deal. I do have a friend that has a set of LT-1 heads for sale. Those are the stock heads, same as what you have on their now. There would be considerable labor costs. Depends on if you have both heads done, and what kind of crap they pull whille they're doing it, ie; need new water pump, new head bolts, new manifolds, etc. If you are interested in the heads, he's selling them cheap. But, some places will just pull the bad head, and fix the bad plug whole, drill it tap it, and then put a helicoil in there. I've done it before, and it's not too hard to do. One time I took a head to a machine shop, and they guy charged $11.00 to drill and tap it. It may be a few hundred just to have a mechanic pull the head(s). this cost is only so high, because of how far your engine is tucked back in your engine bay. But check around, it's worth having done that's for sure. Good luck.
Jake