Ok I had to cut .100-.150 intake valve reliefs into my stock pistons in order to run the cam I'm running now. Will these pistons hold up to spraying a 100-150 shot of nitrous??

Thanks,
Adam <img border="0" alt="[driving]" title="" src="graemlins/gr_driving3.gif" />

 

When you cut them did you camfer & polish the edges?

If you left sharp edges, then it won't like the nitrous.

 

Yea we camferred and polished the edges of the reliefs.

 

There's no garantee with any piston at all, but
I doubt you will have any problem if the sharp edges are gone. It's usually an issue of detonation damage (cracking, melting, etc.) and not directly related to crown thickness anyway.
In other words the piston strength should be fine as long as you don't detonate.
With detonation even very high dollor pistons will die.