200r4 install
wondering what you did for lock up... I'm thinking B&M controller, also TV cable and length... I did these installs back in the 90s but forgot a few things, any additional bracket for TV cable.
Here is what the lock kit that I used in mine. No vacuum switch in mine and I have not seen a need for---- if you are interested I'll go find the part number and/or brand.
Below is the diagram of the lockup kit that I have for my 200-4R.
How the circuit works. The IGN (start and run) signal means that the transmission has a constant 12 vdc and is available for 4th gear Overdrive (OD) lockup once the engine is started and/or running.
The OD locks in from a pure pressure signal from within the tranny. Tapping the Brakes will energize the relay coil, and OPEN the Normally Closed Contact at 87A.
THEREFORE --- the tranny will "kick out" of OD once I hit the brakes.
Simple circuit once I understood it. Not the best quality in assembling. I ended up soldering all leads and buying a quality fuse holder and also soldered that into the circuit.
Last edited by carriljc; Jun 8, 2023 at 11:03 PM.
You can eyeball that here:
https://www.corvetteforum.com/forums...post1605527708
You can eyeball that here:
https://www.corvetteforum.com/forums...post1605527708
I talked with a local transmission shop today and gonna have them do the install just wanted to make sure I have everything I need that i cant get locally before bringing them everything.
talked with Hughes today about this but they want $4k just for the transmission, built for 650HP... clearly overkill for my 190HP stock L48... I can buy a 350HP capable rebuilt for $2k
I can't really remember what I used in the 90s if anything... might have just dealt with the bog.
Thanks again.
spoke with Bowtie today and probably who I'm buying the transmission from, they offer the lock up, cable and bracket kit as well
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Here. A couple of threads that will probably answer the questions you have. Avoid shortcuts dealing the TV Cable and the Lockup. You don't wanna be rebuilding a tranny just because of that:
TH-350 to 200-4R conversion threads:
https://www.corvetteforum.com/forums...t-details.html
https://www.corvetteforum.com/forums...004r-swap.html
here is a turbo-400 to 200-4R thread:
https://www.corvetteforum.com/forums...-pictures.html
Here. A couple of threads that will probably answer the questions you have. Avoid shortcuts dealing the TV Cable and the Lockup. You don't wanna be rebuilding a tranny just because of that:
TH-350 to 200-4R conversion threads:
https://www.corvetteforum.com/forums...t-details.html
https://www.corvetteforum.com/forums...004r-swap.html
here is a turbo-400 to 200-4R thread:
https://www.corvetteforum.com/forums...-pictures.html
I know there are other options now however it's still a straight forward install, same cross member, same driveshaft length, non electronc so it was just a default for me and nothing more, i have a low mile fully restored 1980 and if anyone ever wanted to bring it back to original its an easy task from the 200 back to the 350. I have brand new true dual through the one sided 1980 cross member, most transmission shops now build the 200r4 higher performance with install kits, a bit less complicated conversion all in.
I really just wanted the the extra gearing on the freeway but the stouter first gear will be nice too.
I've talked with Hughes, Monster Transmission, Bowtie and Transmission Depot, they all have built 200R4s though Hughes was pricey. I've also found a local used 200R4 and talked with two local Transmission shops that will rebuild higher performance w/2k stall for about $1,000 and install about $600-$700, traveling right now for work but will make a purchase by weeks end.
I know there are other options now however it's still a straight forward install, same cross member, same driveshaft length, non electronc so it was just a default for me and nothing more, i have a low mile fully restored 1980 and if anyone ever wanted to bring it back to original its an easy task from the 200 back to the 350. I have brand new true dual through the one sided 1980 cross member, most transmission shops now build the 200r4 higher performance with install kits, a bit less complicated conversion all in.
I really just wanted the the extra gearing on the freeway but the stouter first gear will be nice too.
I've talked with Hughes, Monster Transmission, Bowtie and Transmission Depot, they all have built 200R4s though Hughes was pricey. I've also found a local used 200R4 and talked with two local Transmission shops that will rebuild higher performance w/2k stall for about $1,000 and install about $600-$700, traveling right now for work but will make a purchase by weeks end.
https://www.summitracing.com/parts/ist-pagp-pe19a



















