Your statement has me confused. You can't justify the cost of building a 3.8 to match current technology, but you don't care what it costs with a v8 as long as it's right. It's your car and your money, but 600-650hp in a Buick isn't extensively modified and definitely won't break the bank by any stretch, and with a good tune and drag radial would whoop a lot of "new" technology. I could easily do that for under 10k with a 3.8 just in the parts section of this board. Your heart is set on a V8 so I will not begrudge anyone for building anything they want, so my comment has nothing to do with your choice, just your perception. Doesn't look like you have researched the Buick V6 platform much at all.
But at the end of the day your doing what you want and as long as you have reached your goals, it's a home run. Happy motoring.
To even begin to start with a intercooled setup I would be at minimum 3500 for a complete setup that is used and needing a over haul before it went into the car, add a modern computer to run it and we just added another 2k and we have not even started bolting anything to it. We already at 5500 and that's just a some parts sitting on the floor in the garage, To build a 200 4r to 650hp we are probably looking at another 3k plus 1000 in a torque converter after tax and shipping. so we are at 9500 and we have not even dug into the engine yet. figure 1000 bucks at the machine shop on the low side for just the basics and assuming we are leaving the rotating assembly alone and me re assembling it all at home. We already have over 10k spent and we have not even talked about upgrades and all of the odds and ends that rack up the bill. We have not even talked headers and exhaust, fuel system, intercooler..... I just got done repowering my twin engine boat with scratch built new engines and drives and all of the odds and ends and unexpected issues added up in a hurry, a 15k budget turned into 25k in a hurry and I would say I still have a few things left that I want to change.
Take a ls, I can walk into a junk yard and pick one up for 250 bucks as I have done already, add a 1200 holley computer that can run anything I do to it and I can open on my laptop, a simple 700 dollar cam upgrade and I have 450hp to the wheels without hardly doing a thing to it. I believe that holley has the best stuff out there for the g body LS platform so I have all of their exhaust, mounting brackets, accessory brackets.... and I am sure I probably have 2k in that stuff that I could have done for less but did not want headaches from other companies. I picked up my stage 2 4L60E with a yank stall off of a buddy for 1000 bucks that was nearly new. At 5200 dollars I have 450 to the wheels that will more than likely beat any stock or mild turbo 6 and we still have 5k laying here to make another 200hp+. Oh and then the great thing is, if I totally kill my engine and assuming I did not do damage outside of my short block, I walk into a salvage yard and grab another engine for a few hundred bucks and swap all of my parts. I can not walk into a salvage yard and find a turbo 3.8 or even a n/a 3.8... I would be out for as long as the machine shop had my stuff and for parts to show. My machine shop is usually 3-4 weeks out so there goes a month of the summer waiting.
This is why I have backed away from here and other forums, I constantly have to explain myself to everyone for what I am building. Like you think I have not thought this through? When I start my builds I sit down with spread sheets and I put everything I think I need to complete a build, every item with it's expected cost and another column with actual cost once I start it. I can tell you down to the dollar what I have into all of my projects because I do this.
If anyone on here wants to come buy this project from me and stop me from my build, I will sell it to you for what is in it right now, there are allot of high end parts that I have gotten some killer deals on so it might benefit someone... 1985 hot air t top car, this car had when I started had a non working speedo that stopped at somewhere around 145k, the A pillars were rusted bad, rockers inner and outter were toast, the floor boards are shot and gone besides the previous fiberglass patch panels keeping it together, the quarters front and rear totally rotted out, the trunk floor was in fact solid though, t top header needed to be replaced but the rest was good, drivers side had a collision so that fender, original bumper and header panel were shot, solid frame, dash cracked, steering column loose, seat covers dry rotted, plastics and panels all good, carpet shot, newer style wheels rusted and tires not holding air, very bad noise from the front of the transmission, fuel pump was long past toast, engine barely runs after me putting a pump in, previous ghetto owner hacked the fuel lines, tint peeling but good glass, the whole suspension is 35 years old and totally shot. Who wants to come save this gem from me???? I mean it is terrible that I am saving a car that I should have parted out and put a modern engine in it? But since it is a LS engine I will get beat up on by the TR community regardless of how awesome the car is and how much I dump into saving a rusted heap of crap.
The more I write, the more I think the guy above was right, I should have traded it for a nice ricer, it would be allot cheaper. Right now I feel like walking to the garage with a sawz all and cut it in half and parting it out like I should have in the first place.
I do 98% of all of my own work, I have 25 years into g bodies, I have built with my hands more engines than I can count, I have been helping family members and close friends parents build high end hot rods since I was 10 years old. But around here people treat me like I am some idiot that has never touched a car, saw a grand national on GTA and decided that I should go buy one.
You guys have fun talking about my build, I have to go make some more cash to fund this stupid project and I will be in the garage wrecking my GN after that. I am sorry if this comes off wrong, I am just sick of having to justify to people my decisions that have been thought out.