[david-b]

You need to buy a stock replacement. There's no such thing as an aftermarket head. It's what you do to the head that makes it custom then.

If the head is cracked, you can get a head by itself for pretty cheap off ebay. Then, take all the internals (valves, springs...) and put them in the new head. I wont cost too much to do. Installation of the new head in the engine will be alittle more, unless you can do it yourself.

However, it's almost impossible to crack a head. It's more than likely the head gasket (if it's leaking). Those are cheap (~$65), and installation can be inexpensive too. Let me know if you need anything. Good luck