One chassis I built for myself was 100% 316 stainless and I had all the data needed to get it certed.. but being that I was the first ever to do a stainless chassis the NHRA wanted me to run it at 10.0 for a year then bring it back with x-rays of the welds... which I did.. but they still were running me through the hoops.. I ended up lifting the body off and built a moly chassis which I run now... like normal. I wanted to be different
Damn! That was an expensive experiment! Bet it looked great, though.