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-   -   Transmission Adapters (https://classracer.com/classforum/showthread.php?t=89749)

BRETV 06-26-2025 04:47 PM
Re: Transmission Adapters
 
Quote:
Originally Posted by west coast (Post 713760)
Rory the way I see how the Toyota got a gm trans. Ford should be able to also. Ford owned jaguar for several years, jaguar's did use gm transmission for several years. This is not different then what was just approved by nhra. Ford should be able to use any GM trans, have adapters made and have them approved or bellhousing for the 200.
Even if NHRA would approve that, I would still run my C4's.😁




Bret Velde
2003 I/SA

west coast 06-26-2025 08:53 PM
Re: Transmission Adapters
 
Bret I am right there with you none of my junk makes enough power to hurt a C4. Wouldn't give it up. I don't have enough money for anything that has enough power to hurt a C4

jmantle 06-27-2025 12:51 PM
Re: Transmission Adapters
 
Quote:
Originally Posted by Rory McNeil (Post 713536)
Since it appears that a Toyota is allowed to use a GM automatic transmission, because supposedly, at some point some BMWs had GM transmissions, I wonder now if Fords will be allowed to use an adapter for a Turbo 200, since in the early 50s, Lincolns were available with a GM Hydramatic . Or is such a thing only allowed on vehicles that don`t exist in the Classification Guide?
Rory, you bring up an interesting point. Since Ford used the Hydramatic in some of their cars, it could be considered a corporate transmission and therefor legal in any Ford vehicle. You could also say the hydramatic as a GM corporate transmission, it should now be legal in any GM car including the sedan deliveries it was previously banned from.

GTX JOHN 06-29-2025 02:35 PM
Re: Transmission Adapters
 
I wish there was an accepted adapter to use a
904 behind a Big Block Mopar.

There are adapters that we use in our bracket cars
but not NHRA approved (I do not think any are for Mopars).

Boy would that save us some money.

Mark Yacavone 06-29-2025 09:51 PM
Re: Transmission Adapters
 
Quote:
Originally Posted by GTX JOHN (Post 713833)
I wish there was an accepted adapter to use a
904 behind a Big Block Mopar.

There are adapters that we use in our bracket cars
but not NHRA approved (I do not think any are for Mopars).

Boy would that save us some money.
John, I think you'd have a good case for this, after seeing what's already out there.
You'd have to use a flex plate spacer, along with one that would bolt up on both ends.
You'll need a pilot adapter for the added length and the small to large pilot difference.

Maybe there's a few guys here who could tell you how to get this one added to the seemingly nonexistent approved adapter list. ;-)

MR DERBY CITY 06-29-2025 10:08 PM
Re: Transmission Adapters
 
Hey YAC, open can, turn upside down?. Observe worms

GTX JOHN 06-30-2025 10:02 PM
Re: Transmission Adapters
 
We already run a 904 with adapter and a custom
convertor on our bracket cars.

goinbroke2 07-02-2025 03:20 PM
Re: Transmission Adapters
 
Quote:
Originally Posted by west coast (Post 713776)
Bret I am right there with you none of my junk makes enough power to hurt a C4. Wouldn't give it up. I don't have enough money for anything that has enough power to hurt a C4
You think YOU don't have enough power to break a c4? I'm lucky to have 200hp with the junk engine I'm running, lol!

(which is funny as I just had it rebuilt at the tranny shop because it was trashed, lol! (not by me or my power though)

jmantle 07-02-2025 03:36 PM
Re: Transmission Adapters
 
Quote:
Originally Posted by GTX JOHN (Post 713833)
I wish there was an accepted adapter to use a
904 behind a Big Block Mopar.

There are adapters that we use in our bracket cars
but not NHRA approved (I do not think any are for Mopars).

Boy would that save us some money.
I have to wonder if anyone has approached JW for a 904 ultrabell. They do list one for the 727. There isn't a generous number of pump bolts on a 904 but it has as many as a 200 and I haven't had a bell fall off of a 200.

Rory McNeil 07-02-2025 04:39 PM
Re: Transmission Adapters
 
Quote:
Originally Posted by goinbroke2 (Post 713927)
You think YOU don't have enough power to break a c4? I'm lucky to have 200hp with the junk engine I'm running, lol!

(which is funny as I just had it rebuilt at the tranny shop because it was trashed, lol! (not by me or my power though)
A buddy in BC Canada run 9.4s in his SS/EA 427 Fairlane, with a Joels C4, and don`t recall him ever hurting it. Little more pricey than a C4 out of a Mustang from a wrecking yard though.


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