Turbo 400 for our trucks

Fahrenheit

Fahrenheit

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Ok, my tranny is down. While I was in NY with VenomPower I had the transmission looked at, and it needs to be rebuilt. I figured for the price of a rebuild, I might as well go with a Billet Tranny from Suncoast or HTS. The guy doing the work is suggesting going to a TH400. I have heard of a few guys doing this, but is it just as expensive after the adapter plate, and do you have to re-program the computer for this. For now all I have is 3rd ond OD, and it sucks taking off. Any advice would be greatly appreciated...... I do plan on racing the truck in the spring again, so I need something that will hold up to the abuse.
 
I would PM Carlwalski. He did this conversion and I understand he had to have some custom part(s) made. Not sure though on the $$$ comparison for a conversion vice hardening the stocker. i would bet the conversion to be more costly. Also, FstJack should be able to help -- I think he helped Carl.
 
Dom and Fstjack will probably be the ones to talk to, they run TH400s, both built for war and massive hp. Mine is a 4L80E (basically a TH400) but with OD and I'm not sure what components are different. But reading your sig, you have a QC so the easy part is done, swapping out the transmission won't be hard at all. You'll need an adapter kit $2,000+/- (Donato) and the transmission $2,000-$7,000+/-, I think that's about it? lol
 
Really a TH400 is the way to go. You can buy one a dime a dozen from a salvage yard then have it beefed up. You should need no programming as the TH400 is all mechanical, no computer feedback. In other words it'll shift when you shift! It'll far outlast ours and for a fraction of the cost. I can't see and adapter plate runing 2K either. That sounds like BS although I'm sure someone paid that. You basically get a 400, stall converter to match what you want,upgraded clutches and bands for racing, valve body with shift kit, and prolly a custom driveshaft due to the tranny size difference. Bada boom bada bing!
 
my th400 was right around 6k with a converter .....you will be about 10k if not more into the conversion if you do it right!!!!
 
VENOMOUS1 said:
I can't see and adapter plate runing 2K either. That sounds like BS although I'm sure someone paid that.
Click to expand...
BS? Don't care for the insinuation. I just went through the conversion and it's fact.
Yes, I did pay for it, like others have. Gotta pay to play...........;)


The kit includes:

Block Adaptor Plate
SFI Flywheel Assembly
Crankshaft Adaptor
All fasteners & Dowel Pins.

The cost for the 05 and up version is $2295.00.
Shipping and insurance not included.
 
VENOMOUS1 said:
Really a TH400 is the way to go. You can buy one a dime a dozen from a salvage yard then have it beefed up. You should need no programming as the TH400 is all mechanical, no computer feedback. In other words it'll shift when you shift! It'll far outlast ours and for a fraction of the cost. I can't see and adapter plate runing 2K either. That sounds like BS although I'm sure someone paid that. You basically get a 400, stall converter to match what you want,upgraded clutches and bands for racing, valve body with shift kit, and prolly a custom driveshaft due to the tranny size difference. Bada boom bada bing!
Click to expand...
i paid it fstjack paid it carlwalski paid it and many others.....maybe you could find a better dealthen all of us....or maybe you could go down to your local home depot store and put one together even cheaper;)
 
Yeah but you guys went from a manual transmission to an automatic....... Im not the most mechanically inclined, but HOPEFULLY I wont have the fitting problems the RC would have.
 
Carlwalski said:
BS? Don't care for the insinuation. I just went through the conversion and it's fact.
Yes, I did pay for it, like others have. Gotta pay to play...........;)


The kit includes:

Block Adaptor Plate
SFI Flywheel Assembly
Crankshaft Adaptor
All fasteners & Dowel Pins.

The cost for the 05 and up version is $2295.00.
Shipping and insurance not included.
Click to expand...

Where did you get the kit, and did you have to pay a premium being in New Zealand?
 
Fahrenheit said:
Where did you get the kit, and did you have to pay a premium being in New Zealand?
Click to expand...
Donato Engineering is where I got my kit from. Just $600 or so on shipping, which sucked lol but it's not "too" bad for the weight of the gear and that's what happens when you live at the bottom of the world :laugh: :D
 
Me thinks someone is pulling your leg... :eek: :eek: :eek:

I wouldn't be surprised at the prices - I put an SFI rated flexplate in my 7.3 Powerstroke after cracking the first one out around the crank. That was about $800 from memory, and that doesn't suffer from the Viper Tax.

See www.vipertax.com :D :D :D :D :marchmellow: :marchmellow:

Fahrenheit said:
That Link is broken!!!!
Click to expand...
 
why not just have the 48re beefed up? my build was just under 4K with billet shafts, blue race clutches, ect....
 
I've had both. First I went with a Suncoast 48re, built as tough as they could build it... somewhere around 7k if memory serves. Great transmission for the short time that I had it, solid shifts and I wouldn't worry about it in the least for around 800 rwhp.

Now I did the TH400 conversion with a gearvendors. I changed to this because I ended up going much bigger with my build than I had planned and wanted a manual valve body and transbrake for track duty. Yes the adapter costs ~2k. The pieces from Donato are first class and all SFI rated. I've got over 10 grand in the adapter, trans, gearvendors and driveshaft. Add a few grand more for a custom console for the shifter etc. My truck is a quad cab, you have to buy the same parts regardless of it being a RC or QC.

I went this way because of how much power I'm going to be making, rough guess 1500 rwhp, and because I wanted a transbrake. For a more DD truck with less than 1000hp I'd just do a really built 48re and be done with it. Unless you're like Carl and converted a RC to an auto.
 
Thanks Scrambler......you pretty much gave me the relief i been looking for
 
jsut remember fareinhiet, you will need a gear vendors overdrive unless ya want to do only around town driving
scrambler is def the guy to talk with
 
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