Correct water pump for production date of car

Cougar Community Classic Cougar Maintenance Restoration and Repair
1

I have a 1969 cougar 428cj produced 9/23/68. What is the correct water pump. Is it c9ae 8505-A or c8ae . When did the larger bearing pump start being used? 69 model year or calendar year.

2

The casting date on the water pump needs to be at least a week prior to the engine being assembled. The engine block is stamped on the side at the rear with the date it was assembled at Dearborn Engine Plant. Look for a date stamp like this:
block assembly date
This one is 8E 13 E.

3

I found a C8AE-8505-D

4

Thanks Royce, unfortunately I think I have a service block in this cougar. Couldn’t find the date.

5

Well if the car was produced Sept 23 then the water pump casting would have to be 6 - 8 weeks prior.

6

My next question is that going back to say 7-23-68 would the pump be a C9AE large bearing pump? Are all C9AE pumps large bearing?

7

I’m also trying to figure out the correct finish for the fender bolts. I’ve read different things. Is the correct finish for 1969 phosphate finish, cadium or zinc?