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Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

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Old 06-15-2011, 12:46 AM   #1
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92 5.7 swap to 84 corvette 4+3 manual?HELP asap

As of now I have a chevy 350 4 bolt out of a 1992 truck I have found a 1984 corvette shell with a "doug nash"(4+3) transmission 4 speed with 3 OD I figured it would be an easy bolt up but a friend said I will have big issues getting the 92 to connect to a 4 speed transmission kinda new to the engine swap only done one basic i figured every chevy 350 would bolt to a700r4 t350 5speedBW, but not a 4 speed ? HELP asap hoping to buy it in two days if the swap isnt to much of a bitch all feedback welcome
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Old 06-15-2011, 05:55 AM   #2
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Re: 92 5.7 swap to 84 corvette 4+3 manual?HELP asap

Figure out what you're going to do about your torque arm before biting off on it.
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Numquam ponenda est pluralitas sine necessitate.
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Roughly paraphrased into modern English, and applied to figuring out what's wrong with your car:

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Old 06-16-2011, 02:43 AM   #3
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Re: 92 5.7 swap to 84 corvette 4+3 manual?HELP asap

Quote:
Originally Posted by da84Berlinetta View Post
I figured it would be an easy bolt up
i figured every chevy 350 would bolt to a700r4 t350 5speedBW, but not a 4 speed ?
Easy bolt up swap to engine with correct flywheel / clutch combo and 4+3 bellhousing
However the problem arises as Sofakingdom notes above because Vette trans does not have regular GM rubber trans mount underneath ext housing ( no trans cross member in C4 Vette ) and you would also need to fabricate something to mount your stock torque arm.


Click the image to open in full size.



Also the stock 4+3 shifter mounts to the tunnel ; not the trans like normal so you would have to make that work as well.
All not impossible but not a weekend bolt in swap

Also be aware the O/d component of these trans is very expensive ($1500+ ) to repair so do not buy at any price unless you are sure the O/d is working.
The 4 spd part is just is BW Super T10 ; rebuild kits can be had for $120
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Old 06-16-2011, 02:43 AM
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