Ira, if your adding stage 2 heads/cam, talk to somebody before you replace the tstat. Based on what Frank said and confirmed by Katech, they prefer you use stock (192) tstat. Something about the lower temp tstat fooling the pcm into thinking it's in 'cold' start mode. If your going to be doing the LS6 edit to tune your stage 2 package, you can easily reset fan temps that way. Will probably have my old tstat reinstalled when they do the stage 2 and procharger.
If you still intend to add new tstat, I'll sell you mine
