An interesting concept

[roblesterjr04]

I had an interesting thought just now. It goes against purist sensibilities, but I'm purely curious in an academic capacity.

What would be involved in marrying an original ford-o-matic 3spd automatic transmission to the model A motor?

It wouldn't be the same driving experience, but its an interesting thought to have an auto model A for people who can't, or are no longer able to, drive the clutch.

I just wonder if the automatics bell would marry straight up to the A's flywheel housing.

 

[Bob C]

There are kits out there to install automatics.
http://transmissionadapters.com/Model A.htm

Bob

 

[roblesterjr04]

Well thats pretty cool. I wonder how it feels to drive that, and if you get a better top speed?

 

[Kurt in NJ]

I would say less top speed because of converter slippage and trans power to run pump

 

[Dick Steinkamp]

I would say less top speed because of converter slippage and trans power to run pump

...but more top speed if you select one of the OD tranys like the 700R4 or 2004R.

 

[Charlie Stephens]

Try searching "automatic" and you will find a lot of information. As we get older there is more need for automatic transmissions. If a person needs one for medical reasons I am all in favor of it but if you just "want one" I am against it. When you read the archives you will see that there are preferred transmissions to use for the conversion. I don't believe the Ford-o-matic was one of them, it would probably take too much power in addition to the basic fit issues. If I was faced with the problem I would consider starting with a late model 4 cylinder and the automatic transmission designed to work together (forgive me Henry for I have sinned). Remember that the conversion will involve changing the rear end to open drive and building new clutch and brake pedal mounts. A good question to post on HAMB. My advice, forget it unless you have a medical issue.

Charlie Stephens

 

[zzlegend]

Try this thread and read post #21. The Chrysler 904 seems like a good choice.

http://www.fordbarn.com/forum/showthread.php?t=159684&highlight=chrysler+904+automatic

 

[Y-Blockhead]

What would be involved in marrying an original ford-o-matic 3spd automatic transmission to the model A motor?

haha, An "original ford-o-matic 3spd automatic transmission" would probably weigh more than a Model A Engine and take all the horsepower to turn it. I like the concept tho and a Ford C-4 or AOD (or one of the GM OD's already mentioned would be a much better choice.

I do have a C-4 and a Gear Vender OD/UD behind the Y-Block in my '55 Ford Ranchwagon. Using the gear splitter option it gives me a 6 speed.

 

[Fullraceflathead]

The C4 takes the least power

 

[Fullraceflathead]

I run a C4 behind my 296 Supercharger V8 Flathead