Do the Cruise O Matics have a different bolt pattern than the Ford O's? I have a later style Y-Block flex plate that will not mate up to a Ford O converter. How about the aluminum case true 2 speed Ford O's? Any Ideas? Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

Chuck:

Coan once told me there were two bolt patterns used on Ford converters, depending on converter diameter.  He told me to just redrill my flywheel if the pattern was wrong.  I beg to differ with him on only two bolt patterns.  The 2 speed aluminum Fordo has 3 bolts instead of 4, so that's another pattern.

John - "The Hoosier Hurricane"

I sent Frank a flex plate marked 61-62 Y-Block. Crank pattern is correct but his torque converter won't bolt up. First I heard of it but I'm sure they varied over the years. I know some I've seen have two bolt patterns. Thanks, Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

Chuck:

I've been talking to Frank off site.  His converter is not COM, it is FMX from a Mustang, he thinks.

John - "The Hoosier Hurricane"

Redrill? That part he didn't tell me! Chuck

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

I just found out about the 3 bolt convertor from the alum case 2 speed. I purchased 1 thinking it was a 58 to 62 iron case convertor. When it arrived I found it had 3 tabs that bolt to the flexplate not 4 studs that the FOM COM or FMX would have.

I cannot redrill my flex plate as the convertor will not lay flat on the flex plate due to the tabs hitting the curved area close to the ring gear. I think the spline count may be diffrent also.

I had totaly forgoten that ford used an alum case 2 speed and thought I had found a bargin!!

since were on the topic of torque converters mine is the stock fordomatic i messed up by un-bolting the torque converter off my old engine instead of just the 4 or 5 that you need to unbolt to take it off so my question is , is it okay to just to bolt it back together or is there anything i need to line up also is there a torque spec for each of the bolts?

Not my dads 57 Fairlane nor my grandfathers, young guns are taking over ! REBELLIOUSENGINEERING.COM

Ford used 3 different torque converter bolt circles with ring gear welded on flexplate for cars/light trucks.



Ford Mustang II 9.375in

Ford Small 10.500 in

Ford Large 11.438 in

The yblock cruiseomatic is 11.438 bolt circle same bolt circle as FMX used in full size cars and pan filled C4.

I have never tried to install a FMX converter in a yblock due to the oddball pilot used on the yblocks. The only one that could possibly be used would be from a small block with 1.375 pilot and an adapter. One thing maybe a problem is the small block pilot's stick out farther than the other converters. Another option maybe to take a FE torque converter and have a yblock sized pilot welded in place. FE converters for cruiseomatics are much easier to find.



If Frank is using a FMX from a Mustang likely it will have the short tail shaft. This could be a problem for the u-joint to clear X or K member at rear of transmission. The long tail shafts were used on the full size cars.

marv

Rebel,  

      Probably ok, do you have a shop manual? That should have the torque numbers.

      Re: Chuck's Flex plate. The one he has has a 12 1/2" bolt circle. Which is huge! It does bolt to the back of my 292 crank, so it's definitely a Y part. The thing is also about a 1/2 " bigger in diameter than the Std Flywheel. Has 148 teeth on the ring gear, instead of 146. That makes sense since it's a larger diameter. But, as mentioned in another reply here, there's no way an 11 1/2 inch pattern could be drilled in it, the area where the converter sits is too narrow to allow that much change. Needless to say, I'm slightly confused now. I am working with an FMX which appears to be a '72 Mustang small block unit.

Frank/Rebop

Bristol, In ( by Elkhart) 

Ford Mustang II 9.375in
Ford Small 10.500 in
Ford Large 11.438 in
I have never tried to install a FMX converter in a yblock due to the oddball pilot used on the yblocks. The only one that could possibly be used would be from a small block with 1.375 pilot and an adapter. One thing maybe a problem is the small block pilot's stick out farther than the other converters. Another option maybe to take a FE torque converter and have a yblock sized pilot welded in place. FE converters for cruiseomatics are much easier to find.

If Frank is using a FMX from a Mustang likely it will have the short tail shaft. This could be a problem for the u-joint to clear X or K member at rear of transmission. The long tail shafts were used on the full size cars.
marv
[/quote]

  This one has a fairly long (aluminum) Tail shaft Housing. I don't think the length will be a problem. I'd planned to use a small block converter with an adapter, unless I can convince some body to build one with the Y block pilot.

Frank/Rebop

Bristol, In ( by Elkhart)