B or C Block

[Ally Cat]

Is there any difference between the early model blocks compared to the later ones. Was there any bolt holes added later. Are they totally the same. Thanks For Any Help.

 

[old]

The very early Bs used a different engine then the later ones. I do know the later B/C engines are the same but think the very early B engine will be a lot different

 

[r aiken]

The later B's with starter and lights had two bolt holes on the carb. side to mount the gererator. The earley hand crank start had none.

 

[Bob Bancroft]

Assuming you're not talking about the very early, rare Waukesha B, another difference is the early B engine number is stamped into a vertical face on the center, rear of the block- a little hard to see when it's in the tractor.

 

[ACEd]

Not counting the 1937 Waukesha B engines, beginning in 1938 and running til the end of 1942, the B had a BE engine which I believe was 116 ci 3.25 bore x 3.5 stroke.

The C which was introduced in 1940 had the larger 125 ci CE engine 3.375 bore x 3.5 stroke.

Beginning in 1943 at tractor B64501 and running thru the end of B production in 1957, the B also used the CE engine.

The CA which replaced the C in 1950 also used the CE engine.

There were changes in the CE engine - primarily increasing compression ratio (CR) as gas became better and more consistent.

Engine s/n will mostly be steel stamped into edge of flange on drivers left of engine where it attaches to transmission - frequently under layers of paint. Format will be BE or CE followed by up to 6 numbers and a 1 or 2 letter suffix. Early suffixes were K (lowest CR for distillate), G for gas (4.9:1 CR on BE or 5.2:1 CR on CE?), then mid vintage about 1950 GA for gas (5.75:1 CR?), and last iteration PA for gas (6.25:1 CR?)