I have a pre 87 crate moter from summit with a hydraulic flat tappet. I want to change to a roller. I dont want to make some kinda custom thing I want to buy my parts preferably from comp cams. Could anyone tell me exactly what Im gonna need? Ive got a billet timing cover and timing gear already.

 

Just the H-Roller cam and retro-fit roller lifters alone will run you $1000 from CompCams.
A complete retro-fit cam kit is about $200 more, but doesn't include the rockers, roller-rockers will add another $400 depending on what you get.

No one can tell exactly what you need because you haven't given any other information other than it's a crate motor. Post more info and you might get some information you can use.
I didn't decide on the cam until I had decided on what heads to use. Then, I filled an online camshaft requisition form at http://www.compcams.com/

 

You could try scrolling down and finding the other active thread on THE EXACT SAME TOPIC.

https://www.thirdgen.org/forums/tech...ters-73-a.html