ConcoursMustang Forums
Restoring - General discussions that span across many different groups of years and models => Drivetrain => Topic started by: ruppstang on February 09, 2022, 09:15:55 PM
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I have a remanufactured C8 AE -A water pump. I have been trying to find what the small block application is. I am building a 68 J code 302 and what I have found is that it came with a C8 AE-J or a C8 OE-D.
If the C8 AE-A is not correct I will have to rebuild one of the other pumps.
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I have on the shelf, a cast iron pump with a casting number of C8OA-D for small blocks. I got it several years back from NPD. That's about as much as I know.
Jim
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Did you check Mannels?s book? I can check later if needed
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Did you check Mannel's book? I can check later if needed
Yes I did check, and he only mentions the C8AE-J and the C8OE-D. That is why I am trying to find out about the C8AE-A. Service replacement?
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I'm assuming that the numbers you provided are what is often called a "casting number", which as we know can have a direct or indirect (and sometimes obtuse) relationship with the service part number.
Nevertheless I took a look at a few versions of the MPC, which occasionally will list the casting number in the description, which correlates directly to a service part number, and therefore vehicle/engine applicability (applicability from a service perspective, not necessarily what was done at the factory). It is not simple as you know. But there was no fruit there.
I went to the OSI manual and found some part numbers (service part numbers) that were in the range of the numbers you provided. Once again, this may not help at all due to the "casting" vs. "service" part number issue.
It lists a C8AZ-8501-A that was replaced by a C8AZ-8501-B that was in turn replaced by a D0AZ-8501-D which was then replaced by a D4TZ-8501-H, which was the available part in July of 1979. Picture attached.
Going backwards, the D0AZ-8501-D was listed in the 1975 version of the 65-72 MPC, and the applications are all FE engines. Since you were looking in Mannel's book, I'll further assume that the water pump you are asking about is for a small block. Therefore my exercise was a bust.
Knowing that, it now makes sense that the latest version (D4) was designed for the truck (T) line; by 1974 the FE was only being used in trucks.
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Knowing that you are (in my mind anyway) "Mr. 1968" I went backwards. From the 1975 MPC the 68 J code was serviced by D3UZ-8501-A. So I went to the OSI and looked to see what it replaced. Wow, the list is very long indeed. The water pump department must have been working a lot of OT during these turbulent years.
But this did not yield any fruit to me either.
What I don't have (and apparently need) is the Ford document that cross references "casting" numbers (which are really just basic part numbers) to the service part numbers. I've seen some answers over the years that reference this document, so perhaps someone can take the time to look this up?
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I think the suffix "D" pump is the appropriate pump for your cars application from everything that I have seen and read. That is what I had set aside when I had it. I have gone through a lot of C8 smallblock pumps (more then most not as many as others) over the years I don't remember coming across a "A" suffix pump before which makes me think it is of very limited usage compared to the others. The"A" suffix pump as only a after production ceased service pump is counter intuitive but maybe. I would sure like to know how that one fits into the sequence.
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https://secure.cougarpartscatalog.com/16963/31030/water-pump-289-/-302-/-351w-c8ae-a-core-1968-1969-mercury-cougar-/-1968-1969-ford-mustang.html (https://secure.cougarpartscatalog.com/16963/31030/water-pump-289-/-302-/-351w-c8ae-a-core-1968-1969-mercury-cougar-/-1968-1969-ford-mustang.html)
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The '68 parts book calls for C5AZ-8501-T ... for whatever that's worth.
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https://secure.cougarpartscatalog.com/16963/31030/water-pump-289-/-302-/-351w-c8ae-a-core-1968-1969-mercury-cougar-/-1968-1969-ford-mustang.html (https://secure.cougarpartscatalog.com/16963/31030/water-pump-289-/-302-/-351w-c8ae-a-core-1968-1969-mercury-cougar-/-1968-1969-ford-mustang.html)
Currently out of stock on that casting number. We do not know from where it came.
C8OE-D and C8AE-J are the most common cores that we have.
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I ended up using the C8OE-D, I still would like to know how the how the C8 AE-A was used in 1968 production.
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Old topic but since I have my water pump exposed I'm wondering what I should have? I read this thread but I'm a bit confused by the numbers.
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Old topic but since I have my water pump exposed I'm wondering what I should have? I read this thread but I'm a bit confused by the numbers.
Given your build date I would not be surprised to see either a C8AE-D or J casting number. FYI although good to have correct casting number ,the class you show your car in only requires the waterpump to be a typical era Ford made type vs. aftermarket . Casting numbers are not looked at for deductions in that Occasional Driven Class.
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Given your build date I would not be surprised to see either a C8AE-D or J casting number. FYI although good to have correct casting number ,the class you show your car in only requires the waterpump to be a typical era Ford made type vs. aftermarket . Casting numbers are not looked at for deductions in that Occasional Driven Class.
How about Concours Driven class? That's the one I've been showing my car.
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How about Concours Driven class? That's the one I've been showing my car.
Concours driven class too. Thoroughbred class requires all casting numbers and date codes to be as the car was delivered..
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If NJ plant I've only ever observed -J on original cars
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Should not be a difference between plants since the water pump was installed at the engine plant not the car plant ;)
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Is it a possibility that the -A pump was initially used on the late-67 produced 289 engines (the ones using the 302 blocks)?
These late-67 289 engines used different timing covers, different thermostat housings, different lots of items on the front of the blocks.
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Should not be a difference between plants since the water pump was installed at the engine plant not the car plant ;)
Agreed. Just wanted to keep full disclosure