Small block ID number question

[shady]

What does it mean when all you have in the casting number location is

GM5.7LG and nothing else. The front id numbers under the alt are V0226PJC. I cant find these on any of the engine decoding sites. anyone know why the casting numbers are not in the format they should be. heres a few pics I have

 

[76zimmer]

Flint engine plant 26th day of Feb.
88 350 195hp.

It became more common to give the engine its size cast into the block than a casting #...however that is different from a part#.

 

[shady]

I found the flint/02/26 part but couldnt find the rest... How did you find that part. I need to know what it came out of I think to get the proper balancer. I watched mine while running and it wobbles pretty bad. I've been thinking it may have spun but never really checked it out. Its the one in the CC by the way

 

[shady]

http://www.chevymania.com/partsid/suffix.cfm?block=Small

This site helped. appears to be the stock motor. Even from a truck with a 4bbl carb( didnt know there were any carbs in 88). I guess I'll just get a balancer and see what Happens. it still runs like POO

 

[76zimmer]

I found the flint/02/26 part but couldnt find the rest... How did you find that part. I need to know what it came out of I think to get the proper balancer. I watched mine while running and it wobbles pretty bad. I've been thinking it may have spun but never really checked it out. Its the one in the CC by the way

http://www.chevymania.com/partsid/suffix.cfm?block=Small