ID needed

[rpoz11]

So, what smog set-up do I have here???

[68SSCamaro]

It looks like 68 Chevy small block smog to me. The bolts that hold the rear cast piece of the pump to the center aluminum section have WB head markings. Those are 1968. The Diverter valve extension doesn't look right. What's the part number on the pump. Also, look at the diverter valve. There is a flat spot where it bolts to the extension. That's where the part number is stamped, five numbers long.

I have 67 and 68 SB bracket sets that are correct if you want to compare. Both are a little different. Send me a PM, if you're close by maybe you can stop by and I can look it over for you. Martin

[rpoz11]

I believe I have provided the images above regarding this!
Just trying to determine what I have!
SBC Truck, maybee???

[rpoz11]

How do I read the date code here for a smog pump?
I will give a complete uneducated guess:
1-25-9 1(?) S(Saginaw)
Once again, I have never attempted to decipher these stampings before, so this is a complete guess!!!

[Kurt S]

http://www.camaros.org/emissions.shtml

[68SSCamaro]

I didn't see a pulley number. Is it 3927116? If so, is it stamped in a straight line next to one of the mounting holes or is is in a slight arc closer to the edge of the pulley.

The pump is dated 1969.

See the diverter valve images at the end of Kurt's article for the stamping location. The number that you had was a casting number for part of the assembly.