cat sixty with no serial number

My unmolested Cat60 has that engine # there same as the tractor matching ,, seat brass plate and also the # on front right top of main-frame ,,,, have a look at your right hand side front of frame just back from radiator ,, should be stamped too ... hope this helps .. There will be other help I am sure ... only can tell of mine here ! .. Regards pete....she should be a PA in front of that # as well ....must add,,Saskfarm, Moosomin, I have wonderfull memories of Moosomin { Someplace Special} it has on my fridge magnet from there in 2000,,i spent some time there before driving back to Calgary one night ! . for a wonderfull lady to see in Calgary !!! .. BEST WISHES to you and ALL for Christmas season .. pete

The block is out of a late 1925 or very early 1926. Flywheel, manifolds and other parts 1928 or later. It is very common to have mixed eras on 60's as owners did whatever they could to keep them going.

Has the number 5678 as a 1929 year build .. I may be wrong !!??....pete

That is the engine number AND NOT the tractor number. Big difference. The block is out of a Best/Cat transition machine.

I should have mentioned that the manifold is not original, built that. I have a diesel fifty that has had the "diesel fifty" ground off the rad tank and D7 badges riveted onto the rad sides. Been told that dealers did this with new machines that didn't sell to make them look like the current model. It too has all the brass tags removed.
Is it possible this sixty is a Best with a Cat rad installed?

Thanks for the input so far guys!!

I don't believe so. I think the engine number is probably a few hundred after the end of the big crank shaft Best 60 machines. The only difference between I recall (doing this from memory) the big crank Best 60 starting at 2201A and the first San Leandro Cat 60's is the tags. Most had Best radiators and side plates.

i remember seeing a listing of Sixtys with both engine and tractor numbers i think it is in the early ACMOC publications

wow that's a nice looking sixty no mater what the number is lol. if the gas prices keep fall you might be able to afford to run it lol