Ford Flathead information

[Tony Smith]

Originally Posted by Alex Blair

Here is some info but not all,...

"Flathead Specifications
How to Identify the Ford Flathead V8

Mercury and Ford Differences

From the outside, Ford and Mercury differences cannot be made visually. On the forward crankshaft counterweight, the Mercury engine has a dimple located in the center, while the Ford does not. Also, Mercury has a longer stroke than the Ford engine, ....

For the Wartime Ford and Mercury V8's (91A or 99A), the stroke was IDENTICAL at 3 3/4". The different capacity was acheived by a different bore size 3 1/16" or 3 3/16". When the US restarted V8 production after the war, all Fords got the bigger 239 engine which was still the Mercury numbered 59A.

It was the 1949-53 Ford (8BA) that had a 3 3/4" stroke compared to the 51-53 Mercury (1CM) stroke of 4".

[Corey Myronuk]

i have an 8EQ 377ci engine that im researching info on to hopefully replace the 239ci C59A thats missing out of my F60L.I think the outer bolt pattern in the engine plate at the back of the block is also shared with the early "H" series ford 226ci flathead six.If thats the case i may be able to use a truck bellhousing to bolt up the stock F60L trans to the big ford v8.

I'm also currently looking for a flywheel and drivers side water pump for the 8EQ if anyone has leads.

all my engines get a coat of green,similar to but a little lighter than detroit green non metallic.It looks minty fresh and shows any leaks really well.
I find it complimentary to O.D as well.
just my $.02

[Ken Hughes]

Engine colours up to 1942 were grey 1943-on kahki I stand to be corrected but this is the info i have learned over the years.