International Engine Serial Number Location

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NAVISTAR INTERNATIONAL TRUCKS INTERNATIONAL 4 & 6 CYLINDER SEE NOTE AT END OF INTERNATIONAL V8 SECTION 6 Cylinder International Engines with Type No. 3 oil filter base are listed by individual stock numbers. 2 oil filter base listings, see page 93 for information. 1974-45 501 8.2. Tractor Name: Serial Number: Year Made: Plate Location: International 10-20 Gear Drive (kc) 501: 1923: International 10-20 Gear Drive (kc) 7641: 1924: International 10-20 Gear Drive (kc). HOW TO FIND YOUR ENGINE SERIAL NUMBER 25 Family 2012/2013 The model type A and the engine serial No. B are given in the engine identifi ca-tion plate. The engine identifi cation plate C is mounted to the crankcase. Is also stamped into the crankcase. Engine TCD2013L064V T C.

Ok, it's dark out and I'm testing my sediment bowl for leaks....so far so good....when I notice something really, really odd. There is some RED paint on the engine block. Did these yellow tractors get primed in red? I looked at the engine serial number and the chassis serial number and have these to share:
251805 chassis
251341 R8 engine
The casting date on my block is 8 1 A 1...problem is I see that the A was also used in 1955. The bulk of the other casting dates seem to fit with the letter A and I see no red paint.
This leads me to believe that either:

International Engine Serial Number Location

1) PO either painted the engine RED, then repainted it poorly yellow

Vt365 Engine Serial Number Location


2) Red primer was used at the factory or the PO at some point
3) I have a 1955 engine on a 1977 Cub?
LocationThere is a stamp on the engine block, but it looks to be over stamped. I can't see everything on the stamp because it's behind the hyd lines.
What do you all think? Is there a way to tell the age of the engine by serial number since casting letters for the engine were used 2x? I know I have a Zenith carb, but given it's 30 years old, who really knows what happened to 'Daisy' in 30 years. It' s not inconceivable the engine died and a cleaver person found a 1955 engine and added a distributor, Zenith carb (right manifold or not) and painted it yellow. I'm gonna head back out and see if I can find what letter and number combos are stamped to the engine.....and will share it when I get what I can....
BTW, the tank so far with 2 gallons in it seems to be holdin'....cross my fingers!