Any more input on these filters?
Just my .02 cents worth
I’m thinking pre ‘68 OEM were Embossed
Then OEM and over the counter were stamped
“ Best Way to Protect Your Engine -Replace with AC Type A212CW”
What I’m not sure of are when the wire design changes were maid.
You have the
“Welded chicken Wire” Square Mesh then,
“ Welded Chicken Wire” Square Mesh tilted at 45 deg. then,
The “ Expaned Metal” tilted at 45 deg.
Then some time in early 1970’s they got away from
“Best Way To”
And just left
“Protect your Engine with AC Type A212CW”
And later with just
“A212CW”
I have collected these for years and
will be listing in the for sale ads so keep an eye out.
The other question is
How many AC Plants made these and where were they located?
Did St.Louis , Norwood, Baltimore etc. recieve product from an East Coast plant.
And the California plants another?
This is a great source of info here and I’m surprised this thread isn’t a lot older.
Even on the Corvette sites not much at all.
Thanks SYC!!
Joe
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