Originally Posted by Three6GMC

I wouldn't mind running mine till it blows but my truck has been down a few moths already with this new engine build so to have it running again and then have to down it because it broke would really suck. I wan to take care of everything the first time around and not be constantly messing with broken parts. I mean it's gonna happen but might as well do it now. The highest hp rating I have seen for a 6l80-90 is 1200 rwhp and that's from PATC, who claim it will take that abuse all day. There way of accomplishing this is by modifying the 1-3 gear with beefed up power glide parts. I really don't know how this is done as there really isn't much info at all on them. Not to mention I couldn't find anyone using one so who knows.

Originally Posted by CRAZYCUTER4.8

I know Jannetty Racing, East Coast superchargers, and New Era has been using their 6L80 stuff and ran alot of 9.xx passes and they are living. The key I am told by a GM Insider is the tune, and they have apparently nailed it. I spoke with a Sonnax Engineer last month and he indicated they were actually consulting them about logic control. When I called about my 4L60 in my truck they were trying to get me to convert to the 6L80, they are launching a kit and looking for guys with 6,000 to do the conversion....... Out of my league