Casting numbers

[jward1]

6.2 or 6.5? Date?

 

[Mogman]

6.5L does it have a GEP sticker on the left valve cover?
You can tell it is a 6.5L by the bolt holding the oil pump drive.

 

[jward1]

Got this on driver side valve cover and has 1998 in it

 

[Coug]

GEP didn't come out until around 2000 or so, so this won't be one of them.

Here's how to tell the difference between 6.2 and 6.5 easily.

Know the Difference Between the HMMWV 6.2L and 6.5L Detuned Engines

There’s confusion when it comes to identifying the 6.2L and 6.5L detuned engines used in basic and A1 HMMWV models. How do we know? TACOM LCMC says the HMMWV engine repair program is receiving uns…

halfmastpsmag.wordpress.com

.

 

[Mogman]

GEP didn't come out until around 2000 or so, so this won't be one of them.

Here's how to tell the difference between 6.2 and 6.5 easily.

Know the Difference Between the HMMWV 6.2L and 6.5L Detuned Engines

There’s confusion when it comes to identifying the 6.2L and 6.5L detuned engines used in basic and A1 HMMWV models. How do we know? TACOM LCMC says the HMMWV engine repair program is receiving uns…

halfmastpsmag.wordpress.com

.

Well you cannot say that, not all HMMWVs have the engine they were produced with, in fact many don't

 

[Coug]

The date should be stamped into the block just behind the passenger side cylinder head, visible from the passenger seat with the doghouse removed.

 

[Mogman]

You should not be creating multiple posts on the same subject.

 

[86humv]

Dec 17, 97