if this was for a gsr motor.... please let me know if this check list is complete

4- pr3 pistons + rings
1- headgasket
1- waterpump
1- oilpump
1- oil pan gasket
1- cam seal
1- set of arp headstuds
1- timing belt

which rod bearings would i have to get?
what about rod studs?

 

im do n PR3 in my LS block as well. im get n a set of ACL rod bearings from honda-tech user Earl for $50. good price!
get arp rod bolts. im not gonna get rod bolts for my LS cuz i dont plan on rev n past 7K's

also u will need to take the old rods and pistons to a machine shop to have them press the old pistons out of the rod and install the new ones.

question, do u really need to change the oil pan gasket or can u just reuse the old one and put some honda bond around it?

 

I'd use a new gasket unless the one on there has less than like 20k miles. It's only a few dollars, nothing compared to what you already spent.

Don't forget your valve cover gasket, and maybe a distributor o ring and spark plug grommets if it needs them.