Identifying 6.2 Engine

[SSMOORMAN@VERIZON.NET]

Just wondering is there any marking on the engine block for identifying witch engine block I have and what year it is. 6.2 diesel engine.

 

[67_C-30]

There is a casting number on left rear side of the block where the transmission mounts. There is also a date code that will be something like "D 15 4" or "G 20 6". The first letter is the date : A = January, B = February, and so forth. The first number (or pair of numbers), and the last number is the last digit of the year. For example, "D 15 4" would be April, 15th 1984

Your block should be 14022660, if original.

 

[Bighurt]

"D 15 4" would be April, 15th 1985

Does that make sense to anyone else?

I figured D 15 5 would be 15 Apr 85 but now I'm confused...

 

[SSMOORMAN@VERIZON.NET]

There is a casting number on left rear side of the block where the transmission mounts. There is also a date code that will be something like "D 15 4" or "G 20 6". The first letter is the date : A = January, B = February, and so forth. The first number (or pair of numbers), and the last number is the last digit of the year. For example, "D 15 4" would be April, 15th 1985

Your block should be 14022660, if original.

Should have know it was going to be you. You are very helpful, I dont know much about these diesel engine and just trying to take in as much as I can

Block # is correct 14022660, on the right side it read this 9-7-82
now how can i tell if it is a j code or something else. Also should I replace the head gasket with .010 oversize . And head bolts should I replace them also?
Iwill be replacing all gaskets and seals . what about the timing chain ,should that be replaced. SORRY FOR ASKING FOR SO MUCH. Thank's

 

[67_C-30]

Does that make sense to anyone else?

I figured D 15 5 would be 15 Apr 85 but now I'm confused...

My mistake. "D 15 4" would be April, 15th 1984! Sorry about that!

D 15 5 would definitely be April, 15th 1985!

 

[cfish]

Doesn't the VIN number contain this info as well?

 

[67_C-30]

Should have know it was going to be you. You are very helpful, I dont know much about these diesel engine and just trying to take in as much as I can

Block # is correct 14022660, on the right side it read this 9-7-82
now how can i tell if it is a j code or something else. Also should I replace the head gasket with .010 oversize . And head bolts should I replace them also?
Iwill be replacing all gaskets and seals . what about the timing chain ,should that be replaced. SORRY FOR ASKING FOR SO MUCH. Thank's

If it was a J code, it would have a non EGR intake and should not have the EPR (Exhaust Pressure Regulator) flappers on the manifolds.

The head gaskets can be stock with a turbo, but a lot of people use 6.5TD gasket to slighty lower CR. Replacing the head bolts are MUST. The factory bolts are TTY (torque to yield) bolts, they don't need to be reused. Upgrading to ARP bolts is a good mod, but new replacement TTY bolts will do. It would probably be a good idea to replace the chain, especially if the mileage is unknown.

 

[67_C-30]

Doesn't the VIN number contain this info as well?

No, the VIN only designates whether it was a "C" or "J" code engine, and all CUCV's had J code 6.2's (non emissions) and of course the year the truk was built.

 

[Recovry4x4]

While you are doing all of this work on your 6.2, consider replacing the harmonic balancer. With time the rubber allows them to shift. You may not notice it but the crankshaft will and eventually break.

 

[SSMOORMAN@VERIZON.NET]

I have been price them . Some are cheaper thean other by alot . Do I need so spend a lot on one ?

 

[Jake59]

GM 6.2 V8 Diesel Engine Number

Hi all,

Just wondering if anyone can tell me something more from just the Engine number about the engine itself?

6.2 V8 Diesel Engine Number is 14022660.

Any help appreciated.

Kind reagrds,
Jake

 

[Jake59]

Hi there,

Just new here and came across this message about 6.2 Engine Number.
Out of curiosity, do you still have that Engine # 14022660 in your truck?
Reason for asking... as strange as it may sound, I have just come across a 6.2 Diesel wit engine number... sure enough... 14022660
Just wondering how this could be?

Cheers,
Jake

 

[gringeltaube]

14022660 is the 6.2L block model number, from 1982 up to year 1991. So there is more than one out there...


The engine's serial number is what is unique to each; found stamped in this area...

 

[Jake59]

Yep sorry
Got it
I was thinking Serial # and did not cross my mind that this was the block #

Thanks,
Jake

 

[06TBSS]

Thread from the dead!

So my serial # behind Cyl#8 is UJN 024 so all the letters are past L(dec?) So what gives on my date? Funny way of spelling June? The last digit denotes '84 and thats the year of my M1008. The story is it is an outsourced reman engine. I guess the buyer requested or got lucky and given an 84 mill(not that it matters really). My Db2 is J code and #'s lime up w '84 specs also. My truck was built Sept '83 one of the 1st M1008s.

Im just trying to find out if I have Civy heads for the precup arrangement.

Kyle
Westminster, CA

 

[chrisws122eh]

ENGINE DATE AGAIN. !!
I have read all of the above, the date stamp on the block above #1 cylinder should have 7 digits?

My 6.2. casting number ending in 660 has 6

Any ideas of yr guys. OG L4 12