Hey guy like the tittle say.I am i the search for spring and retainers and I want to know if i am buy all I need.My first question is .Do I have to replace the valve keeperes? I am getting new valve seals is anything else I should buy now that I am doing all this.And any good valve lapping compound you guy recommend me. Here is a link to what I am planing in buy for my engine. The reason is I am building my gsr for turbo. Thanks for the help.

https://www.ebay.com/itm/Supertech-D...sid=m570.l1313


And what are the black seal for under the spring and should I replace then

I want to be able to rep my car higher and I am building the block and want to add some cam later

Pick cams. Then valve springs
make sure all valves straight
valve stem seals
valve guides r good still
Lost motion assembly. Lma
keeper too while your there bc why not