btw - you can't machine the head much on these things, at least i know that for sure on the 1st gen head, as there is not much room between the valves and the edge of the combustion chamber - so good luck with that, you'd need a very tiny amount of warpage if you wanted to get away with it. Any decent engine reconditioner should be able to machine it for less than $100 I guess (can't remember)...if your head is cracked then replacing it will cost you a fair bit more (300-400 maybe from a wreckers).