bc valve springs- re shim my rockers?

[s13-t]

s13 sr20det mostly stock. spent the last hour searching the forums as well as google... no luck. i plan on installing some bc valve springs with the stock cams. will i need to re shim the head for the springs to work correctly????

[fast_s13]

as long as you keep the shims in order you should be fine...

[Solow240sx]

Yeah, you should be fine as long as u keep them in order. Unless u have a valve job done while the heads apart. Also i have a set of brand new oem valve guides if u need them!

[kentuckyslider]

I didn't. I have tomie 260 procams and BC springs. I also replaced my oem HLA's and rockers while I was in there. That way all the new hardware could break in together. I had 5K miles on my bottom end and 100K miles on my head and some of my HLA's were frozen.

[DBo]

not tryin to thread jack but i have a question. all my shims got out of order how do i get them somewhat in order would i have to re mic them or get new ones?

[Solow240sx]

If the head has never been rebuilt they should all be 3MM i would get a pair of dial calipers and check them all, I no many people on here don't check there clearances, but it is not a good idea i would also get a dial indicator just to be safe and check the clearances. SR20's have very tight specs as far as cam clearances, Nissans spec is less then 1 thousandths on each rocker shim/guide...I am very picky with my sr though..

[the converted]

There is a specific shim measuring tool. I'm not sure exactly who is selling them at the moment though. I was thinking of making some at some point.

[Solow240sx]

Yeah, i made my own when i shimmed my head for my new fully built sr. It was very easy, and pretty cheap!

[playero_loko]

what happens when you buy the hks head kit, do you still need to shim them? i rather get the hks kit so as it says in labor $$$ anybody have installed the hks head kit yet?