Which cylinder head do I get?

[BJH324JH]

Generally, the block gets hot tanked and goes through a check - cylinder bores, deck face and machined. Crank gets hot tanked as well, checked over and journals machined or linished depending on the condition (there are oil journals that pass through the crank and these can get plugged up with crud - if it dislodges after getting a once over it can wreck new bearings). Add new bottom end bearings for the main crank journals and the rods. Rods are retained. If it's just a freshen up you can get away with keeping the pistons, install new standard rings and a light hone of the bores. If the bores are no longer 'true' or have some scoring, factor in the block getting rebored and new pistons to match. If you've already got it apart then new timing chains and guides are on the list. Think about getting a replacement water pump too. Check clearances in the oil pump gears and inspect the housing for wear on the contact faces in the housings. Get a complete VRS kit with the rocker/valve cover and the half moon seal for the rear of the head. An engine rebuild is not a cheap endeavour, but as long as the machining is good and all the clearances are within tolerance you'll end up with an engine you won't have to mess with for 10 years.

*addendum - replace the rear seal. It'll suck to have the whole thing assembled and running sweet, only to have the rear seal fail and start drooling oil out of it...

Thank you geezer for the valuable information. The engine has been completely rebuilt. Is it unusual though that they used shellac on the headgasket? I've always have been told to install a headgasket dry. This shop also told me they would install American made pistons. I showed up one day uninvited and saw the box of pistons on the table.
Took a picture of the company and called them regarding where the pistons were made, they told me Taiwan. I then asked them to use a felpro head gasket, they didn't. He acted stupid and told me I never spoke with him about using a felpro head gasket. Which is a lie. He told me he was going to strip off all the rust away. Still rust on the pipe. He offered to paint over it! The engine was painted poorly. There is paint in places there shouldn't be, like the inside of the engine oil dipstick tube and the inside of where the water pump installs. He told me he would get rid of all the rust in the hot tank. I think he just painted over the rust. He also used shellac on the engine oil pan. It's probably going to be a bitch when I have to replace the oil pan gasket under the truck. I imagine the oil pan was just cleaned and they probably didn't even bother to remove the rust. Just painted over it. The bottom of the oil pan is also heavily scratched. I have a one year warranty, but, I'm afraid they won't honor it if anything goes wrong. I honestly don't feel comfortable this engine will last. There is just too many weird things that happened with the engine builders and the work they performed. What should I do?