Oversize valves for F/I built engine
 

Has anyone come across any manufacturers who are making oversize valves for the VQ35 yet? I am going to do some head work while my motor is apart for the forged internals from the group buy and this mod came to mind. Any ideas??

im pretty sure ferrea makes 1mm over valves as well as springs, and retainers... a kit for the vq

i have ferrea 1mm oversize valve. they are a shelf stock item there.

-Charles

With the oversized valves you obviously need to have the seats cot 1mm larger to get gains from them. What is the cost to have this machine work done?

I went through the ferrea catolog and couldn't find anything for the Z33 or 350z.

mardigras: its not expensive at all since you typically would do a valve job anyway. just make sure the stems installed height is correct.

turbomax: i have some sitting on the shelf next to me... they definatly exist.