Identify engine in a Ford 3000

[volp]

I have just bought a Ford 3000 tractor made in 1965. I was told that the engine was replaced about 25 years ago. I have found a serial number just above the oil tray : *C 832600 and a production date code at the rear end which look like this:
DBC
G0B03
5C7A
Can anyone help me decoding these numbers? :?:

 

[Sean in PA]

The fact that the engine serial number starts in with a C means that it is a 3xxx series engine made on or after 4/1/1968.

5C7A is March 7, midnight shift, of some year that ended in a 5 (1975, 1985, etc.)

C832600 is a pretty high number, so my gut would say 1985, but you never know.

What is the raised casting number on the right side of the block above the engine serial number? Should be something like D0NN6015xx or E3NN6015xx where the xx at the end may be one or two additional letters, and the C0 and E3 at the beginning might be different as well, but the NN6015 part in the middle should be there. Post that full casting number back here and we can tell when the casting was designed and narrow down the year a little more.

 

[volp]

I have looked at the casting number and it looks like this:
E2NN6015 BC
Hope you can narrow down the year with this!

 

[3000OH]

Suggest taking a look at this site.
Oaktree

 

[Sean in PA]

E2NN6015 BC

The E2 at the beginning means that the casting was designed in 1982, so it is most likely a 1985 engine as I originally thought. So it should be a 192 cubic inch diesel engine (4.4" bore x 4.2" stroke), as pretty much all of the 3xxx series tractors, both ag and industrial, used the 192 ci diesel engine in 1985.

 

[volp]

Many thanks to both [b:61ce485949]Sean in PA[/b:61ce485949] and [b:61ce485949]3000OH[/b:61ce485949] for their reply.
A final question. What is the horsepower of the [b:61ce485949]192 cubic inch[/b:61ce485949] diesel engine compared to the [b:61ce485949]175 cubic inch[/b:61ce485949] diesel engine?

 

[Sean in PA]

(quoted from post at 18:19:12 09/12/19) Many thanks to both [b:caa62fef11]Sean in PA[/b:caa62fef11] and [b:caa62fef11]3000OH[/b:caa62fef11] for their reply.
A final question. What is the horsepower of the [b:caa62fef11]192 cubic inch[/b:caa62fef11] diesel engine compared to the [b:caa62fef11]175 cubic inch[/b:caa62fef11] diesel engine?

About 2 to 3 hp extra at the PTO for the 192 vs. the 175.