Technical adapting later ford flathead to early trans

i am putting together a 52 flathead v8 and a 1939 trans. i have a cast iron adapter to mate the two. it bolts fine to the back of the engine, but the dowels do not line up on the adapter to the trans. when i put one dowel in its hole, the other is about an 1/8 inch out too much. are there different adapters? i had tried a spare case i had,and same thing happened. adapter and dowels look fine. no cracks,and dowels look straight. any help would be appreciated. thanks..

 

Get a stock bellhousing for '49-'51 Merc.

 

I've got a 49 Merc bellhousing, if that will work for you.

 

Are you using the removeable bellhousing / adapter from the F1 pickup? Or aftermarket?

 

i bought it here years ago. not sure what its off of.

 

The pictures below are the '48-'52 truck cast iron 1/2 bell.

 

that should bolt right up iv done dozens,is the clutch aligned? if not it will not let the trans go in straight .the trans must be ****ed it must be even all away around

 

i am in the middle of mock up stage. there is no clutch in either of the ******s. they are just cases.

 

that looks like the one i have.

 

.. Pro Race engine builders center the bellhouseing from the center of the flywheel with a Dial Indicator. To correct any variations they use ‘offset dowels’ which are available, this also is a good way to get rid of clutch chatter.

 

Are there dowels in the block that locate to the adapter?

 

49 merc make certian you get the starter plate and flywheel ***emble. aqll just bolts togeather

 

That setup will work. Have that setup in my 34. What do you mean an 1/8 inch out too much?

 

If the half bell housing bolts to the block you may have a 6 cylinder trans case they are not the same as v8.

 

Not true. The trans are the same.

 

The '41-'48 round pattern 6 cyl. trans case is different than the V8s.

 

How about some photos? might help people guessing on what your working with and allow them/us to give you actual, factual information on what to do.

At the moment were all just guessing at what you need to do and what you have.

A couple of photos will help us help you.

 

I have a bell housing like post#6 and measured the pins center to center and little less then 12 5/16" when drilled may have been 12.300
The 6 and v8 are not the same case.
measure the trans case.
I also think the bolt pattern is not the same.

 

6 cylinder hogs head is different than the V-8. Also, the Merc stamped steel hogs head won't take an 11 inch clutch where a cast truck hogs head will. Don't ask me how I know.

 

You guys are going to have to prove it to me. According to Vanpelts book there were only three cases 18-7006, 48-7006 then 78-7006. I've taken quite a few trucks apart with 6s and 8s and only the bellhousing to block was different. Got a part number?