I am trying to replace a water pump on what I thought was a 460 in a 75 F-250. New water pump did not line up, doing a search with the casting numbers on the original pump (C8SE 8505-E) I found out the pump belongs to a 429 Boss. I know the 429 and 460 block are the same, but I have just bought a cam and headers for the same rig and don’t know if I should change anything or not. The only thing I know for sure about this motor is it’s not the original block for this truck. Are the Boss heads or block special, and what numbers am I looking for to see if it’s more than just the water pump that is a Boss? This one has kind of thrown me for a loop, any advice would be appreciated.

 

If its a Boss 429 the valve covers will be extremely wide with the spark plugs being located through the valve cover. Its a rare engine as well, I doubt you would find one in a pick up and not know about it before hand.
I didn't do any checking on that part number but are you sure its a 429/460 and not a 360/390? Can you post a pic?

 

Here's what a real Boss 429 looks like.

 

I’m pretty sure it’s a 460, but this water pump has me scratching my head. Plugs are normal, nothing going through the valve covers. I guess it’s possible previous owner put in boss water pump and radiator on this rig. This inlet is on drivers side, normal 460 is on passenger side. Of course Boss 429 water pump is twice as much, welcome to my world!!

 

Hold on, let me wipe away the drool.....

 

Or this may be a little closer to what you see IF you have one. And it's a big if.
If you engine looks like this, then look to the heavens and thank your creator for giving you the holy grail.
Edit
You already responded.

 

DO NOT USE THAT WATER PUMP AS A CORE!!!.. Boss 429 owners will go to great lengths to obtain OEM and dated-coded parts. Call these guys and let'em know what you have: Boss Performance Home Page - Ford Mustang Boss 429 performance, parts, restoration and World Registry.

Wanna build a Boss 9 based on a 460? Jon Kaase Racing Engines - John Kaase Racing Engines has what you need. Bring your wallet, checkbook, and first-born.

 

C8SE 8505-E is the "shorty" pump used from 68-70 in 429 applications. Yes the 429 Boss, but also 429 Thunderbirds.

Throw it up on eBay and watch the bids fly in from "ignorant" ones. A $35 pump from Autozone is also going to have C8SE 8505-E cast into it as well.

Josh

 

I appreciate the help. Will finish my build and see if this is worth anything. Has FoMoCo on it, never would have thought a water pump would be worth anything.

 

BOSS 429 is a hemi. You would definately know f you had one! Wish i did.

 

guess previous owner went with a Boss water pump, don’t know if that is an advantage. I guess my only other hope is this would be a Boss block? Any difference or easy way to tell the difference? Once again, i appreciate the help, i am a Ford big block rookie!!!

 

For some reason you have a "shorty" water pump, most commonly found installed in 429 Thunderbirds.

The reason for the "shorty"? To save space at the front of the engine. Nothing more.

If you have a 429, it was likely taken from a T-Bird or LTD.

Josh

 

Welcome to the FoMoCo world of 429/460 waterpumps!

Marked: C8SE-8505-E = Original Ford part number: C8SZ-8501-A

C9VZ-8501-B (replaced: C8SZ-8501-A, C8SZ-8501-B, C8SZ-8501-C, C9VZ-8501-A) .. Waterpump.

Applications: 1968/69 Thunderbird 429 / 1968/69 Lincoln 460 / 1969 Boss 429 / 1969 Ford/Mercury Passenger Car 429 / 1969 Continental Mark III 460.

Josh: 1968/69 Lincoln & 1969 Mark III used a geared Vickers Drive P/S pump w/a remote mounted P/S reservoir.

The pump mounts on engine block, runs off crankshaft, so there's no pulley or fan belt. P/S hoses route from pump to reservoir, reservoir to P/S gearbox.
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D1VY-8501-B (replaced: D0AZ-8501-B, D0VZ-8501-A, D1VY-8501-A) .. Waterpump

Applications: 1970/71 FoMoCo Passenger Car 429/460.
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F1TZ-8501-E (replaced: E4TZ-8501-E, D8TZ-8501-B, D5TZ-8501-C, D4VY-8501-A, D2VY-8501-A, D2VY-8501-B, D2VY-8601-C and D2VY-8501-D) .. Waterpump.

Applications: 1972/78 FoMoCo Passenger Car 429/460 / 1973/79 F100/350 460 / 1975/97 Econoline 460 / 1980/97 F250/350, F(SuperDuty) 460.
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But wait...there's more!

E5TZ-6019-K (replaced: D2VZ-6019-A & C8SZ-6019-A) .. Timing Cover / When C8SZ-A or D2VZ-A cover replaced by E5TZ-K also required is E6DZ-6700-A Timing Cover Seal.

Applications: ALL 1968/97 Passenger Car, F100/350 & Econoline 429/460.
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C8SZ-8508-A .. Waterpump Cover Plate.

Applications: ALL 1968/97 Passenger Car, F100/350 & Econoline 429/460.
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C8VZ-8507-A .. Waterpump Cover Plate Gasket.

Applications: All 1968/97 Passenger Car, F100/350 & Econoline 429/460.
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C8SZ-8513-A .. Waterpump Gasket.

Applications: All 1968/97 Passenger Car, F100/350 & Econoline 429/460.

FoMoCo is in-famous for replacing 10's of 1000's of part numbers EVERY YEAR!!

 

Numbers, thanks for the help. Number overload, but explains what i have. Problem now is i cant find one. Local Napa, Autozone list it, but nobody seems to be able to order it. Found a local guy to rebuild what i have, a little spendy but hate to start to cut corners now. Thanks again for the help

 

C9VZ-8501-B Water pump, replaces C8SZ-8501-A
Dennis Carpenter, Concord, NC has 1 (704) 786-8139
Green sales, Cincinnati, OH has 1 (800) 543-4959