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Water pump housing date. #1989892
01/13/16 02:41 PM
01/13/16 02:41 PM
Joined: Jan 2003
Posts: 8,752
Central,PA
62maxwgn Offline OP
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How would you interpret this date code ?

Image-2872740-214484183-2-Web_0_a5461527dc67b20e8baf28075950ccf9_1.jpeg
Re: Water pump housing date. [Re: 62maxwgn] #1990162
01/13/16 08:41 PM
01/13/16 08:41 PM
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Posts: 1,388
Houston
kentj340 Offline
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Looks like 2-21 to me.


If you don't see two dolphins, you need a vacation.
Re: Water pump housing date. [Re: 62maxwgn] #1990169
01/13/16 08:49 PM
01/13/16 08:49 PM
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usa
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lewtot184 Offline
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don't have a clue but i'm sending you a pm.

Re: Water pump housing date. [Re: 62maxwgn] #1990173
01/13/16 08:52 PM
01/13/16 08:52 PM
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Posts: 5,993
SE PA.
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QuickBpBp Offline
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Am I the only one that thinks it 12-21? maybe I would see it different if it were in my hands..

Re: Water pump housing date. [Re: QuickBpBp] #1990179
01/13/16 08:53 PM
01/13/16 08:53 PM
Joined: Dec 2008
Posts: 938
Poplar Bluff, Mo. 63901
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268RTs4ME Offline
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Poplar Bluff, Mo. 63901
Do u have a casting # or part # u can post???

Re: Water pump housing date. [Re: 62maxwgn] #1990677
01/14/16 03:41 PM
01/14/16 03:41 PM
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Posts: 3
Maryland
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Grnfsh Offline
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I have the same question, I have a housing with the part number of 2780987 with appears to be a date code of 11-03.

Re: Water pump housing date. [Re: 62maxwgn] #1991118
01/15/16 03:57 AM
01/15/16 03:57 AM
Joined: Dec 2005
Posts: 4,143
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52savoy Offline
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Looks like the '62-'63 housing I sold on ebay years ago. I assume it's 1962 or '63 without seeing the casting number.

Re: Water pump housing date. [Re: 52savoy] #1991146
01/15/16 05:20 AM
01/15/16 05:20 AM
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Posts: 32,270
Bend,OR USA
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Cab_Burge Online content
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Didn't all the early , pre 1968, water pump housing have the alternator mounting hole centered closer to the center of the thermostat housing? confused


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Water pump housing date. [Re: 62maxwgn] #1991163
01/15/16 08:54 AM
01/15/16 08:54 AM
Joined: Dec 2008
Posts: 938
Poplar Bluff, Mo. 63901
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268RTs4ME Offline
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Your 2780987 fits 67-68 A Body 383, fits a 67 B Body 426, fits a 67-68 BC Body 383 440, fits a 68\69 B Body 426, fits a 69 ABC Body 383\440, fits a 71 BCE Body 383\426\440, fits a 67\68 BC Body 383\440, and a 70 BCE Body 383,426,440.

Re: Water pump housing date. [Re: QuickBpBp] #1991239
01/15/16 01:47 PM
01/15/16 01:47 PM
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Posts: 9,155
Sacramento CA
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Morty426 Offline
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Originally Posted By QuickBpBp
Am I the only one that thinks it 12-21? maybe I would see it different if it were in my hands..


I see 12-21

Re: Water pump housing date. [Re: 62maxwgn] #1991307
01/15/16 03:55 PM
01/15/16 03:55 PM
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northwest USA
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NANKET Offline
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1666 and older had the alternator bracket bolt on the thermostat boss, 67 and newer it was off of there towards the alternator. Cakes different alternator bracket with no hole in the center. The newer Mopar performance aluminum water pump housings have both bolt bosses on them.

Another quick tell is the two water neck bolts go all the way through the ears on 1966 and older housing, on 1967 and newer the holes bottom out in the casting, they do not go through to daylight.

Re: Water pump housing date. [Re: Morty426] #1991409
01/15/16 06:28 PM
01/15/16 06:28 PM
Joined: Jan 2003
Posts: 8,752
Central,PA
62maxwgn Offline OP
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Originally Posted By Morty426
Originally Posted By QuickBpBp
Am I the only one that thinks it 12-21? maybe I would see it different if it were in my hands..


I see 12-21


If 12-21,12-21 of what ?

Image-2872740-214484188-2-Web_0_b23f7d8c2f03d0a777799e4ce319814b_1.jpeg
Re: Water pump housing date. [Re: 62maxwgn] #1991965
01/16/16 02:27 PM
01/16/16 02:27 PM
Joined: Dec 2005
Posts: 4,143
State of terror
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52savoy Offline
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Cab, It got by me on the bracket boss.

It looks to be a 1971 housing if my memory hasn't failed me. I believe starting in '71, the funny looking triangle with a year next to it was used. I'll have to check my collection to be sure.

Re: Water pump housing date. [Re: 52savoy] #1991971
01/16/16 02:35 PM
01/16/16 02:35 PM
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Sacramento CA
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Morty426 Offline
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Originally Posted By 52savoy
Cab, It got by me on the bracket boss.

It looks to be a 1971 housing if my memory hasn't failed me. I believe starting in '71, the funny looking triangle with a year next to it was used. I'll have to check my collection to be sure.


I don't think so. I thought that starting in 70 there would be a Pentastar on the inlet. There isn't one in this picture so I would say this is 69 or older.

Re: Water pump housing date. [Re: 62maxwgn] #1991978
01/16/16 02:42 PM
01/16/16 02:42 PM
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52savoy Offline
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I'm not really sure because it's been about ten years the last time I researched this.

Just checked a few housings. The pentastar moved around and wasn't always on the neck.. pictures coming soon. Still looks to be a '71

Last edited by 52savoy; 01/16/16 02:57 PM.
Re: Water pump housing date. [Re: 62maxwgn] #1992007
01/16/16 03:22 PM
01/16/16 03:22 PM
Joined: Dec 2005
Posts: 4,143
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52savoy Offline
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My camera sucks...... Upper left going clockwise... 1967, 68, 69(and 70?), 71 and '72


well upper right.. need to rotate the picture.


Last edited by 52savoy; 01/16/16 03:27 PM.
Re: Water pump housing date. [Re: 62maxwgn] #1992075
01/16/16 05:37 PM
01/16/16 05:37 PM
Joined: Mar 2008
Posts: 9,155
Sacramento CA
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Morty426 Offline
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Sacramento CA
This the water pump from my 1970 Sixpack Heater Delete Superbee.

It's dated 06029 - 6/2/1969 exactly 2 months before the SPD of the car.

Water Pump 1970.jpgWater Pump 1970 2.jpg
Re: Water pump housing date. [Re: 62maxwgn] #2460415
03/03/18 12:11 PM
03/03/18 12:11 PM
Joined: Jun 2014
Posts: 212
VA
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dragon slayer Offline
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I know this is old post, but Mort, What are the numbers stamped on the upper driver side of the pump? I found a similar pump but has extra stamp.

Re: Water pump housing date. [Re: dragon slayer] #2460434
03/03/18 12:45 PM
03/03/18 12:45 PM
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N.E. Ohio
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KillerBee Offline
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So what's the mystery production date on this big block housing I have?
Unstamped warranty housing shruggy

housing.JPG1housing.JPG
Last edited by KillerBee; 03/03/18 12:48 PM.

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