As far as I've ever seen, and for whatever reason, GM used the "I" for a one on those stampings. All the stampings I have ever looked at use the "I" there in place of 1. That particular one should be October 9th, 10/09 from what I see.
You'd think GM could afford a stamp kit with a "1" in it...
What they did not do was use I as a code, they used G, H, J, etc. in engine stamping codes but skipped the code I to avoid confusion with a one. Not sure they really avoided confusion, just made a different kind.
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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC. 1963- Pontiac top selling car in Canada
Mahone Bay, NS Still not old enough to need an automatic
As far as I've ever seen, and for whatever reason, GM used the "I" for a one on those stampings. All the stampings I have ever looked at use the "I" there in place of 1. That particular one should be October 9th, 10/09 from what I see.
You'd think GM could afford a stamp kit with a "1" in it...
What they did not do was use I as a code, they used G, H, J, etc. in engine stamping codes but skipped the code I to avoid confusion with a one. Not sure they really avoided confusion, just made a different kind.
That is incorrect. I was regularly used in place of 1 at Tonawanda and Flint (I can't recall seeing a McKinnon case though) and also used in casting dates at some casting plants.
O and 0 were also regularly interchanged, and also 9 upside down as a 6. Here are a few examples showing I as 1, O as 0 and upside down 9 as 6. I can't find it but I have one with two I's, two 1's, two O's and two 0's.
Good grief! As if things weren't already confusing enough lol I don't have my new ride home yet but this thread is interesting to me because my 63 has a 4bbl and dual exhaust...PO says 283 which means he installed the 4bbl or it's not a 283...maybe 327. Sorry if this constitutes hijacking..................
