Does anyone know what part (casting) numbers would be on a 1968 442 W-30 400 block water pump?


does anyone have pictures of one?

 

http://www.oldsmobility.com/oldsmo/v....php?f=6&t=391

 

I believe the correct part number for the water pump with A/C or heavy duty cooling is 400269 and not 400289 or 400268. These numbers are often confusing as the casting numbers on the pumps don't always come out clear. A 6 can look like an 8, and 8 can look like a 9, and so forth. But the assembly manual shows the number 400269.

Randy C.

 

I have to agree with Randy on this. The link I posted shows the incorrect 400296 casting number. Unfortunately, the casting itself isn't much help.



Long discussion here from 2015.

 

400269 is definitively the correct casting number. The other derivatives:
296, 268, 289 are all misinterpretations of a poor casting mold.

 

Yeah, I stole your photo that I posted above.

 

If my car has no air, and a heavy duty radiator what is the correct casting number? 400 cubic inch, 4 speed, no air.

 

HD cooling uses the same pump as A/C cars.

 

yep, the 400269

and if you need one, by buddy has this one available
https://classicoldsmobile.com/forums...-400269-a.html

I already have plenty for my cars, otherwise I would buy it

 

My '68 has heavy duty cooling with no A/C. My '69 has A/C. Both use that same water pump - the 400269. That's how I found out about this little detail!

Randy C.

 

I noticed the ad for the one for sale by a1970442 was listed over a year ago. I will check to see if he still has it available.

 

I don't want to step on anyone's toes, but I have three rebuilt 400269 water pumps available.

 

Hello

do you still have any original or rebuilt 400269 water pumps and how much are you asking and shipping to St Charles Missouri?

 

Just 'cuz I love to watch the ripples in the pool...

the '8' seems pretty well formed. While all the other folks' samples clearly show a '9'

Brett

 

I had a similar one, except on it the 6 looked like an 8. I just go back to the assembly manual and that's where I found 400269.

Randy C.

 

you guys are just old - get some readers, it looks like 400798 to me :-)

 

OK so a 1970 442 4spd with no ac and HD cooling is what casting and part#?
I'm confused, Would it automatically have an X on it?

 

Part/casting number would be 404847 for what you described. The heavy duty cooling changes it from the 404584 water pump to the 404847.

Randy C.

 

Thanks Randy, how about the part # and the X?

 

Not a clue about the "X". I believe the part number is the same as the casting number. That's the way it was for my '68 and '69.

Randy C.

 

So looking back over this thread and links to previous discussions, I am coming up with this a 1970 442 w-30 4spd with no ac and HD cooling uses pump casting number 404584 which has a shaft length of 5.572
A 1970 442 w-30 with ac and the HD cooling uses casting number 404847 and has same shaft length.
Im just trying to start somewhere because the car I have has nothing forward of the timing cover.

 

I wish someone else would jump in here to either verify or correct what I am saying. If a '70 4-4-2 W-30 has heavy duty cooling but no A/C, it should use the same water pump as the same car with A/C, 404847. Heavy duty cooling gives you the same set-up cooling-wise as a car with A/C. A car with A/C automatically comes with heavy duty cooling.

The pulleys you will need will give you a set-up with the alternator on the passenger side and there will be one unused groove on the crank pulley and one unused groove on the water pump pulley.

I've attached a couple of pictures of my '68 4-4-2, which has heavy duty cooling but no A/C. I'm pretty sure it would be the same sort of set-up for a '70 with heavy duty cooling but no A/C.

Please, if there's a '70 expert out there, verify it or correct me!

Randy C.

PS: I don't know why the pics went in sideways and I don't know how to correct them!

 

Im no expert but I did stay at a Holiday Inn last night. As Randy was saying A/C and Heavy duty cooling cars in 70 got the 404847 water pump. The 404847 has the X as Scrappie mentioned.
"Heavy duty" cooling seems to be a term loosely used a lot. Y72 was the heavy duty cooling and generator package in 70. For the most part the rear axle ratio and or A/C determined the cooling system. These 2 pages are from the 70 assembly manual. They show the different pulley configurations. Look them over and tell us which configuration you think is correct for your car and we can help you get the correct waterpump. Cutlass/442 V8s only used 2 different length waterpumps in 70, 5 and 5.5.

Don W

 

It's the same set-up for the '68 & '69 model years. Don's post also gives you the pulleys you need to put everything in front of the water pump back together again. Thanks, Don!

Randy C.

 

I still have three 400269 rebuilt water pumps available EngineErnie.
They used the correct original cast impeller. I have to agree with Paladin that the last "9" looks like an "8" in his photo. Another identifying mark on water pumps is the mark on the base by the casting number. It is either a number in later years or a dot or an "O". As the water pump that Paladin has posted has the same "O" as the 400269 I posted I have to assume it is a mistake in the casting process?
The part number from GM is different than the casting number.
As others have said the 404847 is the water pump for all AC and heavy duty cooling applications. The Heavy Duty cooling term as Shifty Sidney said is used very loosely. As HD cooling is equated with Y72. But HD cooling refers to the clutch fan, radiator, water pump, fan shroud, V01, V02 etc.
An example is; V02 got a clutch fan 3 core radiator and a 404847 water pump, but no fan shroud.
Whereas an AC car would could have a 3 core and all the other goodies and it would technically have HD cooling. Some setups got certain additions mandatory when ordered a certain way.
A 3:91 gear car automatically received a 4 core radiator.
I hope I am not convoluting things.
The 404584 water pump was for all other applications in 1970.
If you used the 404847 water pump on a non AC setup such as the W30's
you needed the "KM" water pump pulley. It is 2 groove with and offset that makes up for not having the 3 groove AC pulley.

 

I apologize for the confusion guys, Im just trying to get this right and I feel like an idiot. Randy thx for the pix. It looks like the set up I will need. Your water pump pulley and crank pulley both have three grooves. RocketDevo says if non ac car set up it has 2 pulleys (KM)
This car is a original and documented 4 spd w-30 that needs resto and I am slowly gathering parts to do so. It does have a 3:91 rear, the core support has the wide radiator brackets to support the 4 core rad. I have a long way to go before engine is put all together along with car but Im starting with some obvious things I see missing. Super cars sells water pumps that fit and some say numbers matching whatever that means? I think finding the pulleys may be the hardest part? So 404584 or 404847 would be proper for a 70 442 w-30 4 spd no ac, HD cooling ,3:91 rear......right?
The pulleys are another story which I will have to find.

 

That helps with the new info you posted.
I can tell you definitively that you need the 404847 water pump, along with the "KM" pulley. The radiator being a 4 core will be the "EC" rad tag code.
The tanks will have embossed on them "IF" for the driver side and "CI" for the passenger side.
I believe the Parts Place reproduces the "KM" pulley. Without it the belts will never line up.
If you are in need I have rebuilt 404847 water pumps available.
Thanks.