Farmall M engine size

mainamana · Jan 15, 2011

Looking for information on engine size for Farmall M. Is there a number cast into the block to identify?

El Toro · Jan 15, 2011

The engine on the Farmall M was 248cid unless the engine was rebuilt with an overbore kit. Hal

Janicholson · Jan 15, 2011

The M size was not on the casting.
The Super M started that designation.
As El Toro notes, tractors as old as these are almost all rebuilt. Almost all rebuilds use thin sleeves and increased displacement. Jim

D Slater · Jan 15, 2011

Above the oil filter and on the side of the engine block look for the cast number and letters following the number. Should be 6722D?, second letter changed over the years. Most times IH replacement blocks used another casting #. IH did make some replacement blocks with C248 cast on them. Engine serial # stamped on the block down below the # one spark plug, should have the prefix letters FBKM on non diesel engines. Replacement blocks don't have a serial # on them unless someone stamped one when installing.

Farmall M engine size

mainamana

New User

El Toro

Well-known Member

Janicholson

Well-known Member

D Slater

Well-known Member

Similar threads