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HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

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Old Apr 2, 2010 | 11:53 PM
  #1  
91camarolover's Avatar
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From: Des Moines IA
Car: 91 RS, 84 Z28, 85 Iroc-z
Engine: 3.1L, 350 4 bolt, 350 TPI
Transmission: 700R4, 700R4, 700R4
Axle/Gears: 3.23, Unknown, Unknown posi
HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

I would just like to know what all I would need to replace as in radiator, transmission (700R4) and other stuff like that. What all would I have to do to the fuel pump since I'm planning on switching to carbed on this swap? Also I would like to put some sort of posi rear in. What would be the cheapest/easiest way to do that?

Thanks guys
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Old Apr 2, 2010 | 11:58 PM
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skirkland1980's Avatar
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From: morrow, ga
Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

install V8 motor mounts and older model carb sending unit
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Old Apr 4, 2010 | 02:09 PM
  #3  
91camarolover's Avatar
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From: Des Moines IA
Car: 91 RS, 84 Z28, 85 Iroc-z
Engine: 3.1L, 350 4 bolt, 350 TPI
Transmission: 700R4, 700R4, 700R4
Axle/Gears: 3.23, Unknown, Unknown posi
Re: HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

so would you know if the tranny or the rad will still work?
thanks
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Old Apr 4, 2010 | 03:00 PM
  #4  
skirkland1980's Avatar
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From: morrow, ga
Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

if you have a 700r4 it will work. this is what i do to see if parts will interchange. go to www.autozone.com, choose your vehicle and part, then see if the car with the other options have the same part number.
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Old Apr 4, 2010 | 04:20 PM
  #5  
91camarolover's Avatar
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From: Des Moines IA
Car: 91 RS, 84 Z28, 85 Iroc-z
Engine: 3.1L, 350 4 bolt, 350 TPI
Transmission: 700R4, 700R4, 700R4
Axle/Gears: 3.23, Unknown, Unknown posi
Re: HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

thank you... Do you know what any good heads for it? or any good cams?
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Old Apr 4, 2010 | 04:21 PM
  #6  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
A 3.1 TH700 won't work with a V8.

The 3rd gen 3.1 radiator is the same thing as a 3rd gen V8 radiator.
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Old Apr 4, 2010 | 07:46 PM
  #7  
91camarolover's Avatar
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From: Des Moines IA
Car: 91 RS, 84 Z28, 85 Iroc-z
Engine: 3.1L, 350 4 bolt, 350 TPI
Transmission: 700R4, 700R4, 700R4
Axle/Gears: 3.23, Unknown, Unknown posi
Re: HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

is the TH700 different than the 700r4? thanks
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Old Apr 8, 2010 | 05:50 PM
  #8  
91camarolover's Avatar
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From: Des Moines IA
Car: 91 RS, 84 Z28, 85 Iroc-z
Engine: 3.1L, 350 4 bolt, 350 TPI
Transmission: 700R4, 700R4, 700R4
Axle/Gears: 3.23, Unknown, Unknown posi
Re: HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

is the TH700 different than the 700r4? please reply
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Old Apr 8, 2010 | 06:14 PM
  #9  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
"TH700" is short for "TH700R-4".

Both the V6 and V8 4-speed overdrive transmissions used in 3rd gen f-bodies are TH700R-4's, but the bell housing and internals are different. The main issue is you can't bolt a 3rd gen f-body V6 TH700R-4 to a V8.
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Old Apr 8, 2010 | 09:52 PM
  #10  
91camarolover's Avatar
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Posts: 160
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From: Des Moines IA
Car: 91 RS, 84 Z28, 85 Iroc-z
Engine: 3.1L, 350 4 bolt, 350 TPI
Transmission: 700R4, 700R4, 700R4
Axle/Gears: 3.23, Unknown, Unknown posi
Re: HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

Ok thanks... Would a th350 from a 76 Nova bolt right up?
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Old Apr 8, 2010 | 10:08 PM
  #11  
igotta355z28's Avatar
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From: Bedford Tx
Car: 1991 Z28 1LE
Engine: 370CID GenIII
Transmission: 4l60e
Axle/Gears: 4.33 Moser 9inch
Re: HELP PLEASE!!! want to take my 3.1 to a 350 4 bolt main

ur best bet is to just go find a v8 style 700r4 dont waste ur time on a th350
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