Has anyone been able to use their Y block motor and adapt it to a newer upgraded transmission. If so, I would like some suggestions. I would like to add an automatic with overdrive in my 1956 build. Psmith1951

 

Here are a few. Pricey but they are out there.

Ford Y-Block Transmission Adapters

Recent News and Articles - Gearstar Performance Transmissions


Ford Transmission Parts AOD Transmission Parts AOD Adapter - A Transmission Super Store Transmission Torque Converters Rebuild Kits

 

Here is one to connect a C4 to a Y-block. I have one on my 56 Fairlane, works very well.

The Y-Block

 

Thanks for all the information. How satisfied were you with the C4 in the 1956 Fairlane compared to before? I would like to keep my 312 Y block in my build, but I want more efficiency on the road with a later automatic trans. I have a good C6 transmission that I could use and I have access to several of the C4 transmissions. psmith1951

 

I've got a truck Flat-O but haven't got it put in yet. I also bought a car Flat-O bell housing and flex plate at a swap meet. I got the rest of the stuff from Gene at Flat-O to make it work but in order to install it in a truck you'd have to change to car motor mounts and add a transmission crossmember for the C4.
Trying to get the ole Y Block purring before I change it over to an automatic. Added a Ford ECZ 9425-B single 4 barrel intake, a Holley 390 CFM 4 Barrel, a Pertronix Ignitor III & Flame Thrower III coil. Still gotta work on the tune and add headers.

 

I am very happy with the C4. I have 3.22 gears and a mildly hopped up 312. Good power off the line and about 2700 rpm at 75 mph. I don't do that much freeway driving so overdrive was not a big concern. The C4 was cheaper and consumes less power to operate that most of the other trans options.