Need help identifying engine stamp marking on 1971 Pontiac 350 Engine

Btc89

New member
Joined
Dec 6, 2012
Messages
76
Reaction score
0
Points
0
I have a 1971 pontiac 350 engine and I was cleaning in the oil pan area and I saw this marking (see pic) and I was wondering what does it mean. If anybody knows please let me know. Thanks!
 

Attachments

  • IMG_20150129_160138471_HDR.jpg
    IMG_20150129_160138471_HDR.jpg
    51.4 KB · Views: 120
my guess is an individual, prior owner, machine shop, etc. placed it there to ID the block it is not a factory stamp to my knowledge
 
Back
Top