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LT1 swap... should i use the 700r4 or the 4l60e that comes with it

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Old Jul 27, 2009 | 10:15 PM
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LT1 swap... should i use the 700r4 or the 4l60e that comes with it

Hi,

I bought a 96 impala ss motor and tranny, still bolted together, full swap.

I have a built up 700r4 or 4l60 in there now, but its v6..

I would rather keep my tranny if I can just put a v8 shroud on there..


will the one from the 4l60e work?

Or should I just go 4l60e with 78k on it

Dan
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Old Jul 28, 2009 | 04:33 PM
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From: Shelby,NC
Car: 95 Suburban K1500
Engine: 355 TBI,heads,cam,flowmaster exhaus
Transmission: 4L60E custom rebuild, mod shift kit
Axle/Gears: 3.08 front and rear
Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

the 4l60e would require wiring harness and computer all to be swapped but your 700 will not bolt up to the v8 if it was behind a 2.8 and they dont make an adapter plate to go from that bolt pattern to the v8 my opinion you need to get a 700 that has proper bolt pattern
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Old Jul 28, 2009 | 09:53 PM
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From: Highland Heights, KY
Car: Camaro coupe
Engine: 350
Transmission: 700R4
Axle/Gears: 3.23
Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

whats wrong with the trans that is bolted to the motor from the SS.
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Old Jul 28, 2009 | 10:29 PM
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Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

what he^ said,if the 4l60e is good use it,it'll be alot easier,i know from experience.
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Old Jul 28, 2009 | 11:09 PM
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85camarojunkie's Avatar
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From: Highland Heights, KY
Car: Camaro coupe
Engine: 350
Transmission: 700R4
Axle/Gears: 3.23
Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

the 4l60e is much more electoniclly anvanced than the 700. The 700only uses a plug to lock up converter. were as (corect me if im wrong) is running off the computer constantly with the motor. Its confusing but just stick with the one bolted to the motor.
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Old Jul 29, 2009 | 11:08 AM
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Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

that makes sense...

I wanted to use my 700 because its fresh, and built up.
maybe 10k miles verses 78k on the 4l60e bolted to the motor.

I know I would need the bellhousing , a new torque converter, and a 93 lt1 throttle body.
When the shipped me my trans, it had the wrong bellhousing on it, and my mechanic used the one off my stock 700r4,
I thought this meant they shipped me the 90 * v8 vs the 60* v6, and I thought just this peice was needed to go between...





Anyone have experiance with 96 impala SS?
How do they shift?
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Old Jul 29, 2009 | 11:28 AM
  #7  
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From: Highland Heights, KY
Car: Camaro coupe
Engine: 350
Transmission: 700R4
Axle/Gears: 3.23
Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

?? bellhousings on autos cant be changed...
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Old Jul 29, 2009 | 11:37 AM
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Car: 1984 Trans Am
Engine: LT1
Transmission: T56
Axle/Gears: 10 bolt w/ 4.10 gears
Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

Originally Posted by 85camarojunkie
?? bellhousings on autos cant be changed...
What he said. The bellhousing is cast into the case on a 700r4, not a separate piece like on a T5 or T56. From the two transmissions you have, the 4L60E is your only choice.
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Old Jul 29, 2009 | 12:00 PM
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Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

hmm allright

I guess Ill run it till I blow it, and throw a worked one in when that day comes.


thanks

anyone interested in the 700r4 for the v6 ? shfit kit / corvete servo/ boost valve. kevlar bands/ etc etc.
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Old Jul 29, 2009 | 01:11 PM
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From: Highland Heights, KY
Car: Camaro coupe
Engine: 350
Transmission: 700R4
Axle/Gears: 3.23
Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

does a corvette stall fit in a 60* trans??? I thought the bellhousing was to small for a 90*converter. Thats new for me.
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Old Jul 31, 2009 | 10:15 AM
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Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

Ok, I guess I am going to use the 4l60e..

Is my speedo going to be plug and play with this?

Ive read posts on here saying it worked no problem with stock VSS, and others saying no go.

Also, will my stock shifter work for this tranny? its out of a floor shifted impala ss, so I need new cable / linkage ?



Any advice?

thanks
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Old Jul 31, 2009 | 05:25 PM
  #12  
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From: Rochester NY
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 3:50 Moser 9"
Re: LT1 swap... should i use the 700r4 or the 4l60e that comes with it

700R4's are pretty much junk if you plan on putting any kind of real power through them.
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