Help to identify 6.5 engine

[daiglesteve1965]

12552929 and 10149599.thanks

 

[Will L.]

The 929 is a 6.2 I believe with the 2 piece rear main seal.

The 599 is a 6.5, need the julian date code on right rear of engine near bell housing bolts to identify better. The 599 is the number from the early 90’s to today’s production. Could even be chinese knock off.
Pictures help also.

 

[daiglesteve1965]

The 929 is a 6.2 I believe with the 2 piece rear main seal.

The 599 is a 6.5, need the julian date code on right rear of engine near bell housing bolts to identify better. The 599 is the number from the early 90’s to today’s production. Could even be chinese knock off.
Pictures help also.

 

[Will L.]

The other side of the block- passenger side
And valley pic of the 599

 

[Will L.]

Scratch that
599 is the older 6.5.
I mixed up 506 with 599
599 block is early 90s GM 6.5

 

[daiglesteve1965]

Only other numbers I can find

 

[Will L.]

The Julian codes will tell month/ year

 

[daiglesteve1965]

The Julian codes will tell month/ year

Is that it in pic?

 

[Will L.]

Look here where I am pointing. This is my 1999 6.5 block. Also please hit “insert then full image”

 

[Twisted Steel Performance]

There are 599 6.2 motors, they were during the change over to 1 piece blocks, all were aspirated motors during the last half year of the 6.2.

 

[daiglesteve1965]

There are 599 6.2 motors, they were during the change over to 1 piece blocks, all were aspirated motors during the last half year of the 6.2.

The 599 casting code is D073.the 929 casting code is A265

 

[Twisted Steel Performance]

599 - April 7 1993
929 - January 26 2005

I think this is correct....

 

[MrMarty51]

Look here where I am pointing. This is my 1999 6.5 block. Also please hit “insert then full image”

View attachment 77582View attachment 77583

That finger is much too clean for a 6.5 owner. :hide

 

[daiglesteve1965]

599 - April 7 1993
929 - January 26 2005

I think this is correct....

I would have thought the 929 would have been a 95

 

[daiglesteve1965]

Could you tell me a good master overhaul kit for the 599.thanks

 

[SnowDrift]

My '95 was a 141

 

[Paveltolz]

My 96 came with a 141. Replaced with a rebuilt 6.2 660 NA block bored over 30, added 6.5 heads...6.35?

 

[ak diesel driver]

My 96 has a 141 as well

 

[Will L.]

So basically, I apologize because my brain made soup of the numbers and years in my head I once knew. I would like to blame it on covid-fog brain.. but I have been jumbling up numbers more over the last year.

 

[SnowDrift]

You always seem to have a lot rolling around in there, Will