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Discussion Starter · #1 ·
Hey guys. Does anyone know if this combo is possible? I searched and been unable to find anyone that sells linkage for this combo. As stated in the title, Its a 396 BBC, weiand tunnel ram, holley 660 carbs and a 700r4 tranny. Just wondering if im going to have to fab something up to hook up the TV cable (i think thats what they call it) on the 700 to shift right with acceleration. Thanks!
 

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Hi, I've been looking into doing a similar setup on my '40 chev pickup... It has a 427 BBC, 700R4, and I have an Edelbrock UR2X (Tunnel ram) manifold and a couple of Holley 660's. I Haven't done it yet and would also appreciate info from anyone who's "been there". Personally, I see no reason it wouldn't work... I think you'd need a high stall converter and yes, a custom TV setup. lots of good info around for this, try http://www.cpttransmission.com/tech_tvcable.htm theres a diagram as well. Dunno about the Weiand manifold, but it looks like I need an extra 6" on the TV cable length with the Edelbrock. I found it interesting to note in the holley 660 manual it states: WARNING: This carburetor is NOT designed for use with ANY automatic overdrive transmissions. If used on an automatic overdrive vehicle, severe transmission damage WILL result. The manual can be found here if you don't have one... http://www.holley.com/data/Products/Technical/199R7463-2rev1.pdf

Does anyone know why Holley claims the 660's are not compatible with automatic overdrives? Thanks!
 

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Lokar makes a custom cable for the 700r4, and it also needs a separate bracket to mount to the carb. I looked into them, but never contacted Lokar to find out what length this cable is to see if it would also work with a tunnel ram and twin carbs.
This is the kit:
http://www.summitracing.com/parts/LOK-KD-2700HT/
And this is the needed bracket:
http://www.summitracing.com/parts/LOK-SRK-4000/
Just over $100 for the pair, but it seems like it might work. I'd contact them and ask for sure; either Summit tech line, or Lokar.
 

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Discussion Starter · #4 ·
holley 660 manual it states: WARNING: This carburetor is NOT designed for use with ANY automatic overdrive transmissions. If used on an automatic overdrive vehicle, severe transmission damage WILL result. The manual can be found here if you don't have one... http://www.holley.com/data/Products/Technical/199R7463-2rev1.pdf

Does anyone know why Holley claims the 660's are not compatible with automatic overdrives? Thanks![/QUOTE]

Yes, I did read that warning right after a purchased the carbs. I freaked out and immediately started looking into possibly buying a manual valve body for my 700r4. I actually wouldnt mind that if it would work. But I wasn't too excited about shelling out another 350 for the part. I also hate the "look" of the TV cable especially now that it may be up in the air on top of the tunnel ram. Either way, I have the carbs now and I have to figure something out soon. I hope I dont trash the tranny in the process but I will definitely relay any results, good or bad.
 

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Discussion Starter · #5 ·
Lokar makes a custom cable for the 700r4, and it also needs a separate bracket to mount to the carb. I looked into them, but never contacted Lokar to find out what length this cable is to see if it would also work with a tunnel ram and twin carbs.
This is the kit:
http://www.summitracing.com/parts/LOK-KD-2700HT/
And this is the needed bracket:
http://www.summitracing.com/parts/LOK-SRK-4000/
Just over $100 for the pair, but it seems like it might work. I'd contact them and ask for sure; either Summit tech line, or Lokar.
Thanks Val for the links, I'll definitely look into it. MAX
 

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Here's an old post on the HAMB board that I saved when looking at a swap for my car. It covers the amount of travel needed to make a 700r4 TV cable function properly. I can't see any reason a Holley of any kind can't be adapted to make the proper travel length of about 1.25" total.
I've also read of guys making bracketry to connect the TV cable to the pedal assembly to get the 1.25" travel from idle to full throttle, and not have the cable attached at the carb for asthetics.

http://www.jalopyjournal.com/forum/showthread.php?t=615972
 

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Discussion Starter · #7 ·
Here's an old post on the HAMB board that I saved when looking at a swap for my car. It covers the amount of travel needed to make a 700r4 TV cable function properly. I can't see any reason a Holley of any kind can't be adapted to make the proper travel length of about 1.25" total.
I've also read of guys making bracketry to connect the TV cable to the pedal assembly to get the 1.25" travel from idle to full throttle, and not have the cable attached at the carb for asthetics.

http://www.jalopyjournal.com/forum/showthread.php?t=615972
Great reading and tips Vall, thanks. It definitely gives me some options to consider
 
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