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#1989892 - 01/13/16 11:41 AM Water pump housing date.
62maxwgn Offline
master

Registered: 01/22/03
Posts: 8552
Loc: Central,PA
How would you interpret this date code ?


Attachments
Image-2872740-214484183-2-Web_0_a5461527dc67b20e8baf28075950ccf9_1.jpeg



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#1990162 - 01/13/16 05:41 PM Re: Water pump housing date. [Re: 62maxwgn]
kentj340 Offline
pro stock

Registered: 03/04/11
Posts: 1345
Loc: Houston
Looks like 2-21 to me.
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#1990169 - 01/13/16 05:49 PM Re: Water pump housing date. [Re: 62maxwgn]
lewtot184 Offline
master

Registered: 06/09/08
Posts: 2667
Loc: usa
don't have a clue but i'm sending you a pm.

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#1990173 - 01/13/16 05:52 PM Re: Water pump housing date. [Re: 62maxwgn]
QuickBpBp Offline
master

Registered: 07/06/03
Posts: 5897
Loc: SE PA.
Am I the only one that thinks it 12-21? maybe I would see it different if it were in my hands..

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#1990179 - 01/13/16 05:53 PM Re: Water pump housing date. [Re: QuickBpBp]
268RTs4ME Offline
super stock

Registered: 12/25/08
Posts: 938
Loc: Poplar Bluff, Mo. 63901
Do u have a casting # or part # u can post???

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#1990677 - 01/14/16 12:41 PM Re: Water pump housing date. [Re: 62maxwgn]
Grnfsh Offline


Registered: 07/13/14
Posts: 3
Loc: Maryland
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.

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#1991118 - 01/15/16 12:57 AM Re: Water pump housing date. [Re: 62maxwgn]
52savoy Offline
master

Registered: 12/28/05
Posts: 4143
Loc: Traitor-A-LaGo
Looks like the '62-'63 housing I sold on ebay years ago. I assume it's 1962 or '63 without seeing the casting number.

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#1991146 - 01/15/16 02:20 AM Re: Water pump housing date. [Re: 52savoy]
Cab_Burge Offline
I Win

Registered: 08/23/03
Posts: 31230
Loc: Bend,OR USA
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
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#1991163 - 01/15/16 05:54 AM Re: Water pump housing date. [Re: 62maxwgn]
268RTs4ME Offline
super stock

Registered: 12/25/08
Posts: 938
Loc: Poplar Bluff, Mo. 63901
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.

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#1991239 - 01/15/16 10:47 AM Re: Water pump housing date. [Re: QuickBpBp]
Morty426 Offline
master

Registered: 03/12/08
Posts: 8432
Loc: Sacramento CA
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

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#1991307 - 01/15/16 12:55 PM Re: Water pump housing date. [Re: 62maxwgn]
NANKET Offline
master

Registered: 12/13/03
Posts: 4134
Loc: northwest USA
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.

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#1991409 - 01/15/16 03:28 PM Re: Water pump housing date. [Re: Morty426]
62maxwgn Offline
master

Registered: 01/22/03
Posts: 8552
Loc: Central,PA
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 ?


Attachments
Image-2872740-214484188-2-Web_0_b23f7d8c2f03d0a777799e4ce319814b_1.jpeg



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#1991965 - 01/16/16 11:27 AM Re: Water pump housing date. [Re: 62maxwgn]
52savoy Offline
master

Registered: 12/28/05
Posts: 4143
Loc: Traitor-A-LaGo
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.

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#1991971 - 01/16/16 11:35 AM Re: Water pump housing date. [Re: 52savoy]
Morty426 Offline
master

Registered: 03/12/08
Posts: 8432
Loc: Sacramento CA
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.

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#1991978 - 01/16/16 11:42 AM Re: Water pump housing date. [Re: 62maxwgn]
52savoy Offline
master

Registered: 12/28/05
Posts: 4143
Loc: Traitor-A-LaGo
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


Edited by 52savoy (01/16/16 11:57 AM)

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#1992007 - 01/16/16 12:22 PM Re: Water pump housing date. [Re: 62maxwgn]
52savoy Offline
master

Registered: 12/28/05
Posts: 4143
Loc: Traitor-A-LaGo
My camera sucks...... Upper left going clockwise... 1967, 68, 69(and 70?), 71 and '72


well upper right.. need to rotate the picture.



Edited by 52savoy (01/16/16 12:27 PM)

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#1992075 - 01/16/16 02:37 PM Re: Water pump housing date. [Re: 62maxwgn]
Morty426 Offline
master

Registered: 03/12/08
Posts: 8432
Loc: 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.


Attachments
Water Pump 1970.jpg

Water Pump 1970 2.jpg



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#2460415 - 03/03/18 09:11 AM Re: Water pump housing date. [Re: 62maxwgn]
dragon slayer Offline


Registered: 06/27/14
Posts: 153
Loc: VA
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.

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#2460434 - 03/03/18 09:45 AM Re: Water pump housing date. [Re: dragon slayer]
KillerBee Offline
master

Registered: 01/20/03
Posts: 6427
Loc: N.E. Ohio
So what's the mystery production date on this big block housing I have?
Unstamped warranty housing shruggy


Attachments
housing.JPG

1housing.JPG




Edited by KillerBee (03/03/18 09:48 AM)

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