Water pump question

[Scott Kiger]

So my 68 RR came with AC and the book calls for a six vane water pump. If I had the original I would get it rebuilt but I don’t have it. All the parts houses seem to have are standard eight vane. I am going back O.E. so I really would like to have the pump style the factory said it needed. Do any of y’all have a line on a place to get them? Or even an original pump? Thanks in advance.

 

[pnora]

So my 68 RR came with AC and the book calls for a six vane water pump. If I had the original I would get it rebuilt but I don’t have it. All the parts houses seem to have are standard eight vane. I am going back O.E. so I really would like to have the pump style the factory said it needed. Do any of y’all have a line on a place to get them? Or even an original pump? Thanks in advance.

Aluminum Hi-Volume Mechanical Water Pump

 

[Scott Kiger]

Aluminum Hi-Volume Mechanical Water Pump

Thanks a bunch.

 

[Scott Kiger]

Spent some time online and found some other options for folks. Here is an AC Delco that is cast iron and a six blade impeller for about half the price if the Mancini aluminum pump

https://a.co/d/csPe2UQ

 

[pnora]

34.99 ACDELCO 252587 Water Pump | Shop Now at RockAuto

 

[Scott Kiger]

34.99 ACDELCO 252587 Water Pump | Shop Now at RockAuto

By the time you pay the shipping about the same as Amazon.

 

[Jeff Peterson]

I’m pretty biased when it comes to water pump's

MOPAR Big Block hi flow water pump

 

[Scott Kiger]

I’m pretty biased when it comes to water pump's

View attachment 1798522
MOPAR Big Block hi flow water pump

Those are awesome. I just worry about how that would work with a factory AC setup.

 

[Jeff Peterson]

Keeps this cool on the street with a 22” radiator

 

[Bird 426]

It will probably work better than what your buying. I'm in with #7, Flowkooler. Yeah it costs alot more, but remember, you get what you pay for.

 

[RJRENTON]

So my 68 RR came with AC and the book calls for a six vane water pump. If I had the original I would get it rebuilt but I don’t have it. All the parts houses seem to have are standard eight vane. I am going back O.E. so I really would like to have the pump style the factory said it needed. Do any of y’all have a line on a place to get them? Or even an original pump? Thanks in advance.

WHY.....the replacement pump (8 vanes) will be just fine, as no one has x-ray vision to know whether you have a 6 or 8 vane pump.....besides the 8 vane pump will move more coolant, in both velocity and gallons/minute for best teat exchange......but if you want superior coolant circulation, a Flowkooler pump is the best solution....it moves more coolant and at a higher velocity than either 6 or 8 vane Mopar pump. Paint the Flowkooler pump the same color as the engine is and NO ONE will know. I use a Flowkooler pump on my original '70 GTX RS23V0A****** the car has the A34 supertrack pack including max cooling radiator, torque drivefan clutch, shroud....cooling is great, even in 100 degree ambient in slow traffic......
BOB RENTON

 

[Scott Kiger]

Thanks for the replies. I ordered the flowkooler.

 

[Mopar Hunter]

Thanks for the replies. I ordered the flowkooler.

Summit Racing has it for $128 with free shipping, did you find a better price?

 

[Resto_1]

Looking for a quality rebuilder of water pumps. The 6-vane impeller w/p is there for a reason on A/C cars, which have a higher speed drive than non-A/C cars. Trying to keep the proper components to make everything work as it should with A/C. Not looking for suggestions for a substitute. Thanks in advance.

 

[Bird 426]

Well, good luck with that!

 

[Resto_1]

Well, good luck with that!

Found a place in Mass, waiting to hear back. Wil keep you posted

 

[RJRENTON]

Looking for a quality rebuilder of water pumps. The 6-vane impeller w/p is there for a reason on A/C cars, which have a higher speed drive than non-A/C cars. Trying to keep the proper components to make everything work as it should with A/C. Not looking for suggestions for a substitute. Thanks in advance.

View attachment 1868078

You mentioned that you do not want ANY substitutions......a curiosity question....WHY NOT? IMO...a Flowkooler pump will outperform either of the two pumps you show. The Flowkooler pump has a totally different impeller design, to move more coolant (gallons/minute) at a higher velocity for significantly better cooling. The Flowkooler pump impeller all but eliminates cavitation at cruising rpm, yielding better cooling efficiency......regardless of the drive configuration. I assume that you are using the max cooling radiator, thermal drive fan clutch, 7 blade fan running in a factory shroud. There are many users of the Flowkooler pump on the FBBO forum. Once you paint the pump to match your engine color, only you will know it's not original.....except the engine will cool better due to higher circulated coolant velocities and don't believe the old addage about coolant must be slow when going thru the radiator. A totally incorrect assumption.....velocity is the key to efficient heat transfer. I have Flowkooler pump on my 1970 Plymouth GTX RS23V0A****** an original six barrel car.....and NO ONE knows the difference.......but this is just my opinion........
BOB RENTON

 

[Tony Tee]

Rockauto has a decent pump. aluminum housing 6 vanes.$20.oo
I bought 2 of them already. Nice piece for the money.

 

[RJRENTON]

Rockauto has a decent pump. aluminum housing 6 vanes.$20.oo
I bought 2 of them already. Nice piece for the money.

Personally, I buy parts on performance capability not on price. Who rebuilt your $20 pumps? Chinese stuff?? ...how about warranty?....but, to each his own......
BOB RENTON

 

[Tony Tee]

Pictures of the rockauto pump next to a more expensive pump. Looks like they are the same except for the impellers. Heck for $20 you can press on a different impeller if you were handy. and most parts are chinesium anyway.