Hey there

Have pulled the head off my n/a ba donk that is about to receive a turbo. Am going to take her in for a recon. Was told that the valves on the n/a engines are different to the turbo ones. Are there any direct replacements out there that anyone knows of? Also looking at changing springs, what are people recommending out there? if I am planning on using stage 2 crow cams I guess I should just stay with there recommended spring to match the cams, I know atomic do some cams, are they much better than the crow ones? Does anyone have any specs? Looking for good street ability with a little more top end and a nice loop.

Cheers

Stu

Edited 04/04/10 11:46 PM04/04/10 11:46 PM by 383ongiggle

They are different. Exhaust valves on turbo motors are Inconel. AFAIK, Ford have the only stock sized Inconel exhaust valves available. Atomic offer a .5mm larger Inconel exhaust valve and matching collets as they are a single groove setup but will suit factory style retainer.

Springs will depend on how much boost and power you plan to make. I'd look at the the Crow or Atomic Ovate springs. I believe they can handle 40+psi from a big turbo.

Specs are available on the Atomic and Crow websites.

Thanks mate, I will go down to ford and see what they are charging for a set I guess