Smog pump stamping

**ALLZS** · #1 03-27-2021, 12:57 PM

this is a 68 cast date pump with a very early 68 date is the date stamp in the correct place

rszmjt · #2 03-27-2021, 02:01 PM

I have had a few pumps stamped there but most of them are on the small machined area to the right of your stamp.

**firstgenaddict** · #3 03-27-2021, 03:04 PM

Also seen a couple where this one is located... 138th day of 68 Nice pump.

**ALLZS** · #4 03-27-2021, 05:00 PM

this was on a 69 Camaro 1st week of sept of 68 build seem like a early date for that

**60sStuff** · #5 03-27-2021, 07:00 PM

This Smog pump came off an early ‘66 GTO.

Chris.

**MJV1953** · #6 03-27-2021, 09:26 PM

My 1969 Van Nuys Z28 09D 1968 build which still has its original smog pump and is stamped 23481S

**grantprix** · #7 03-28-2021, 01:05 AM

This is my '67 "06D" GTO pump date which is stamped in the machined area.

**60sStuff** · #8 03-28-2021, 02:51 AM

Grant,

Your stamp of 1447 looks to be May 24, 1967 which lines up with your car.

**ALLZS** · #9 03-28-2021, 12:33 PM

way is the last letter differ on these pumps is it a date code or where there where built ?

rszmjt · #10 03-28-2021, 01:28 PM

Quote:

Originally Posted by ALLZS

way is the last letter differ on these pumps is it a date code or where there where built ?

Yes the last letter is plant build code, I think S = Saginaw MI, Y = Yipsalanti MI, not sure on the Z and U, Maybe someone will add to the post.

The Following User Says Thank You to 60sStuff For This Useful Post:
grantprix (03-28-2021)