700r to350turbo
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Joined: Jul 1999
Posts: 17,271
Likes: 171
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: 700r to350turbo
Long tailshaft TH350 so you can use the factory driveshaft. If you use a short tailshaft TH350, you need the longer driveshaft from a 82-83 third gen that came with the 200c 3 speed tranny.
Modified tranny crossmember because the TH350 tranny mount sits 2" forward from the 700R4.
A way to mount the torque arm since the TH350 doesn't have a mount on the transmission like the 700R4 does. An aftermarket torque arm with tranny crossmember solves both problems by mounting the new torque arm onto the crossmember where it should be.
A manifold vacuum source for the modulator valve.
Then there's all the other stuff. Detent cable brackets, speedo drive, shifter cable etc.
Modified tranny crossmember because the TH350 tranny mount sits 2" forward from the 700R4.
A way to mount the torque arm since the TH350 doesn't have a mount on the transmission like the 700R4 does. An aftermarket torque arm with tranny crossmember solves both problems by mounting the new torque arm onto the crossmember where it should be.
A manifold vacuum source for the modulator valve.
Then there's all the other stuff. Detent cable brackets, speedo drive, shifter cable etc.
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Joined: Sep 2004
Posts: 75
Likes: 0
From: Allentown Pa.
Car: 74 z28, 89 IROC, 98 Z28, 91Z Vert
Engine: 383, 350, 347, 305
Transmission: th400, 700R, T-56, 700R
Axle/Gears: 3.42, 3.45, 4.10, 3.08
Re: 700r to350turbo
If you use a short tail th350, I have an extreme duty drive shaft and trans/ torque arm crossmember with low miles from spohn. You will only need the torque arm. Then everything is bolt in. I don't run kickdown cables on th350's, but if you are tpi i have a braided one I can throw in. Just thought I would pass it on and can save ya a few bucks.
Member
Joined: Mar 2007
Posts: 301
Likes: 0
From: York, PA area
Car: 84 Trans Am
Engine: 383 Stroker
Transmission: Th350
Re: 700r to350turbo
Last edited by 84transamdude; Jul 7, 2011 at 04:50 PM. Reason: added pics.
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