Ls6 question

[ALLZS]

where all ls6 chevelle blocks vin stamped by the oil filter from all the different factorys building them

[Steve Shauger]

where all ls6 chevelle blocks vin stamped by the oil filter from all the different factorys building them

Short answer is no.

[BLACKLS5]

Just Flint and Van Nuys that I'm aware of.

[GotGrunt]

Just Flint and Van Nuys that I'm aware of.

I think Flint actually stamped the VIN on the bellhousing flange.

[Teddy]

Good information here. Though a little confusing on Baltimore and Flint stampings.
http://chevellestuff.net/1970/engines/index.htm

[SS427]

For a period Baltimore cars were also stamped by the oil filter.