[barbl52]

Thanks Greg

My 5.3 at idle gets to 220 F. I am still working on Bed & minor cab damage so I have not ran it down the road. Gm set the temps. at 220 F for more efficiency fuel economy. I hoping by lowering temps. I can squeeze another 200,000 out of this 5.3. I have 1 pcm set at factory temp. settings and 1 pcm set at lower temps. Here in a few months (when project hits the road) I can do some test runs see if temps. makes any difference.