Rb26 Spring Rate And Cam Question

[James_03]

Hey guys,

I had my rb26/30 tuned yesterday after finishing the build on it finally, all running well. I bought a rb26 reconditioned head for it a while back that supposedly had camtech cams in it. The person I bought it from also told me it had springs.

Long story short it's running fine, but the head is "noisy". I was told the clearances need to be done by the tuner, and he's probably right. I take it this means the shims all need to be checked yes?

So my questions is, I would like to chuck in a set of Tomei Pro Cams, 272's with 9.15 lift. Without taking all the head apart, how can I check if it has better springs in it?

The idea is to chuck new 272's in it, then do the shims at the same time but I will obviously need better springs for the 272's which hopefully already have. The camtech cams had serial numbers etched into them, but I am still sus on the springs being stockers.

It there a tool I can get to check the spring rate?

Cheers.