i gotta 82 ta 4 spd an i bought a 87 firebird with a v8 an 700r4 , an trans in great condition,so im wonderin how hard is it to convert a 4spd car to a auto 700r4? i have tha console an shifter an everything but ill it bolt up?........btw you guyz any one need parts off tha 87? im gonna part tha whole thing out.its a 87 firebird..305 automatic car...full power...t tops...gray interior car is metalic purple on tha out side.lemme know wut you want if you want anything

 

The rear mount/crossmember is located farther back on the frame than your '82 has holes for - drill to match and put nuts inside the frame. You'll have a hole in the tunnel where your 4-speed shifter goes that will need to be covered for the auto, and you'll need a hole for the shifter cable where there isn't one now.

Taking out the clutch pedal is the next hardest thing. Other than that, it's probably easier than going the other way.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam and intake, World 305 heads, Hooker headers & y-pipe, 3" Catco cat & 3" cat-back).
57 Bel Air, my 1st car. 0.030 over 396, 9.7 CR forged TRWs, Weiand Action+, Edelbrock 1901 Q-Jet, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlock header mufflers, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Best 15.1/94.6 @ 5800' Bandimere.

 

Or you can just modifiy your existing crossmember for the new tranny and not have to drill the frame. I put a t-5 in place of the th350 that was in my 82 ta, and I just welded a piece of 1/4" steel plate to the crossmember to give me a surface for the mount, and then drilled the hole where i needed it. Works great, and its easier to but a new crossmember then a new frame.

The pedals are gonna be a b*tch if you plan on replacing the brake/clutch carriage with a brake carriage from the auto. I have a spare brake carriage if you need one.

 

What are you gonna do with the 4 speed? I may be interested in it and all its associated stuff (bellhousing, flywheel, mechanical clutch linkage, shifter, mount, etc) if you want to unload it

let me know

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Clem
SCCA TransAm Series Race Mechanic/CrewChief
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1983 Z28 with LG4, 5 speed, and (unfortunately) T-tops
1983 Z28, NO T-tops, (unfortunately) Auto Transmission---FOR SALE---
Looking for a V8, preferably 4 or 5 speed Camaro with NO T-tops (wanna trade?)