Camaro waterpump

[Unreal]

I just looked in "Chevy By The Numbers 1965-1969" and did not find the number you listed. Maybe someone a little more knowledgeable than I can comment, but I think there is an issue with later design long water pumps with the ribbed snout. Seems like there is interference with 69 pulleys.
I used the correct pump and correct pulleys, on mine, so I am not speaking from experience. I just remember someone making a comment at one point about being careful not to mix and match on the pump and pulleys.

Sorry, I should have stayed out of this one, but since I looked up the number after I made the first post, I felt obligated to post this.