[Formulajones]

It's more or less going to be a phone call to figure out what they need to build for you.
I think most all places use HP as a base line since it's typically in the same ball park unless we a talking about diesels.
I found when I was digging into it that pretty much all these trans shops rate their basic 4l80's around 750-850 HP and those consist of better friction materials and some of their own proprietary internal upgrades that aren't all that extravagant. The only difference for the 1000+ HP units is an upgraded input shaft but like Steve was telling me it's pretty difficult to break the stock one and most just go that route even for the bigger power stuff.
I don't think the cost for a stronger input is that much more though.

Not sure what his lead time is for a 4l80 right now. I'm having him do a 4l60 for a current project I'm on and those cores are much more plentiful so I can get it fairly quick.