77 C3 transmission change question

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Dec 28, 2009 | 12:31 PM

RIO68

Thread Starter

Burning Brakes

Joined: Feb 2009

Posts: 780

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From: Shelby NC

77 C3 transmission change question

Can anyone give me the details of putting a 200r4 in my 77 car in place of the stock 350? What is needed and what works and what doesn't? I can turn the bolts I just need a list of what is needed if this is a good way to go.
Thanks guys for any help!

Dec 28, 2009 | 12:39 PM

crvtownr

Racer

Joined: May 2009

Posts: 295

Likes: 2

From: Columbus OH

Might want to try a search, there may be more than this:

http://forums.corvetteforum.com/c3-t...rans-swap.html

http://forums.corvetteforum.com/c3-t...ossmember.html

http://forums.corvetteforum.com/c3-t...questions.html

Dec 28, 2009 | 02:33 PM

wrw2497

Advanced

Joined: Dec 2009

Posts: 90

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From: sebastian florida

trans swap

I just put for sale a crossmember to put a 700R4 in a C-3....then saw your post.....Rick 772 643 5283

Dec 28, 2009 | 08:47 PM

Artsvette73

Drifting

Joined: Jan 2004

Posts: 1,991

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From: Piscataway NJ

The only things you need toi get right is the tv cable adjustment and how you want to lock the convertor. The trans swap itself is just that. I would suggest finding a donor from a Monte SS

Dec 29, 2009 | 09:13 AM

929nitro

Melting Slicks

Joined: Feb 2007

Posts: 2,136

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From: West Kingston RI

Quote:

Originally Posted by Artsvette73

The only things you need toi get right is the tv cable adjustment and how you want to lock the convertor. The trans swap itself is just that. I would suggest finding a donor from a Monte SS

You will also have to modify or get a new crossmember for the 200 4R (700 is different). Here is a sight that will have everything you need as well as info on the TV cable adjustment. Do not run tranny without this cable hooked up and adjusted properly or you will burn up your tranny.

http://www.bowtieoverdrives.com/index.shtml

Dec 29, 2009 | 09:42 AM

RIO68

Thread Starter

Burning Brakes

Joined: Feb 2009

Posts: 780

Likes: 1

From: Shelby NC

trans 200R4

On using the 200R4 what is the situation with the driveshaft? Longer or shorter--or same?

Dec 29, 2009 | 09:54 AM

mrvette

Team Owner

Joined: Jul 1999

Posts: 65,492

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From: Orange Park Florida

Quote:

Originally Posted by RIO68

On using the 200R4 what is the situation with the driveshaft? Longer or shorter--or same?

Same d/shaft.....that's the beauty of the 200 4r over the 700, that and it's much better suited and lighter ....

the 200 sets on my old Muncie/fixed crossmember location, right on the support, the 700 sat on the modified muncie support, rather complicated...

Dec 29, 2009 | 10:34 AM

RIO68

Thread Starter

Burning Brakes

Joined: Feb 2009

Posts: 780

Likes: 1

From: Shelby NC

trnas swap

Just talked to my trans guy and he told me there is now a valve that goes in the pump on a 700R4 that will make the converter lock up hydr. and not electric. It effectively elminates the need to wire up the lock up converter on the 700R4. It becomes a hyd. issue not electric. He also ran through a list of additional bells and whistles for the trans to improve it for performance. I believe the 700R4 seems to be the way to go.