It doesnt take a lentech 4r70w to be strong, a fully updated 4r70w with a jerry modded valve body and the right torque converter will handle 700+rwhp with ease.
4r70w's are not weak, the older ones need some updating, but they can be very strong (rediculously strong). He would need a different case with the 351 (a late model v6 case).
You can chip them out (they are very brittle) or zap it with a plasma cutter and it will destroy the bit, you just have to be carefull not to hurt the head.
$100, it will be as soon as tomorrow, its from my mothers Jeep (wrecked) Its sitting at my shop, I'll yank it as soon as I hear from the insurance company.
It should work OK, however to be safe I would use Russell powerflex line, as its rated much higher (2500psi) than standard stainless braided rubber line and will not corrode over time.
Yeah. Those looked like ss autocrhome welds, they use a mig process that resultes in welds that look alot like that, and they use a decent quality polished stainless (304) that looks like that. They also just started producing a 5.0 TT setup.
He's using flipped shorties for a turbo setup I would assume. Thats why I preffer to make headers, it save trouble like that. If you Tig there is no reason you couldnt, its just as cheap as buying a set of cheapo headers.
I love working on cars for a living.
Some people are different. I will work all day on customer cars every day and still have every ambition to work on my own stuff. Hell half the time I get more motivated to change/work on something on my cars after doing a cool project for a customer. The further I get into the industry the more I love it. Granted that could be because of the part of the industry I'm involved in.
And I have a BA in Psych from OSU.
No BAP?
If he is going to be doing freeway pulls at that power level he better invest in dual FPDM's and dual BAPS, a single FPDM will go into thermal protecion after to long of a pull with twin GT pumps.
PTK has been around for a long time. I modified one of there gen II lightning kits to work correctly and it made 800rwhp/800rwtq with a little PT76GTS.
Getting the kit might take some time from what I have seen.