10 vane water pump ??'s

[hunt2elk]

Doing some garage cleaning and ran across this 2843290 big block water pump. It has a 10 vane cast impeller. Anyone familiar with this and does it have any added value?

 

[Jerry Hall]

Added value?? I will say I have not seen a 10 vane impeller before, even on an AC car. I didn't go to the trouble of looking the part number up to find the application, but the part number looks common for sometime in the mid to late 60's.

 

[hunt2elk]

Added value?? I will say I have not seen a 10 vane impeller before, even on an AC car. I didn't go to the trouble of looking the part number up to find the application, but the part number looks common for sometime in the mid to late 60's.

Yeah, I have never seen a 10 vane before either. 2843290 is for 1963-71 big blocks, so pretty common part. Just the 10 vane is uncommon.

 

[BeepBeepRR]

Could it be for a Marine application or possibly industrial?

 

[bearman]

Added value?? I will say I have not seen a 10 vane impeller before, even on an AC car. I didn't go to the trouble of looking the part number up to find the application, but the part number looks common for sometime in the mid to late 60's.

I'm thinking industry pump for boat, generator and pumps

 

[BeepBeepRR]

I'm thinking industry pump for boat, generator and pumps

Said the same thing lol..

 

[hunt2elk]

You guys are really being a Debbie Downer, lol. Here I was hoping it was a 1 of 1 Hemi part that I could sell for big bucks. Pretty sure it came on a 69 Charger R/T that I had several years ago.

 

[Big Bad Dad]

Probably a rebuilt exchange from a parts store back in the good old days.

 

[R/T Boy 67]

My 67 R/T had that impeller in it when I bought it, and it still does. I assumed it was original, but didn't know for sure. I know it takes more than an impeller to make an efficient cooling system, but my car runs within five degrees of whatever thermostat you put in it.

 

[Tony Tee]

There used to be a YouTube video about Mopar water pumps. This person had built a test rig using a running engine and measured times a flow rates of different impellers / pumps. He had about 30 different types of pumps. I would love to watch his video again but I believe it's been removed. What a shame. Had great info.

 

[R/T Boy 67]

My 67 shop manual shows a 10 blade impeller for big blocks, except hemi.

 

[Cranky]

Have a new Mopar Performance aluminum pump with 8 blades and had a stock one that had 6 blades iirc. Just boxed up the 6 blade one the other day and can't remember already lol

Edit: It had 6 blades but it was one from Mancini and aluminum. Actually took a pic and remembered doing that!

 

[R/T Boy 67]

Somewhere between 1967 and 1971 they went to an eight blade from the previous ten for non A.C. big blocks.

 

[GTX JOHN]

As my elder mind recalls the AC cars had a 6 blade and the Non AC
8 or 10. Mopar felt that the slow flow would cool better was how it was
explained to me by a Mopar engineer in the 60s when I was confused
and asked him.

 

[R/T Boy 67]

In A.C. cars the water pumps ran much faster than non A.C. to achieve a higher fan speed. The impeller was then made smaller to get the proper flow rate.

 

[GTX JOHN]

The bottom pulleys were close to same size
Were the top pulleys that much smaller in size?
I do not remember that.

 

[Cranky]

The bottom pulleys were close to same size
Were the top pulleys that much smaller in size?
I do not remember that.

There were some WP pulleys that were a different diameter but it wasn't that much different.....but maybe it was enough.

 

[Dave6T4]

Water pump pulley on A/C cars were smaller than pulley on non-stop A/C, so impeller ran faster.

 

[R/T Boy 67]

Non A.C. ran .95 times crank speed and A.C. was 1.4 times crank.

 

[Fran Blacker]

Not to disagree with 67 RT boy, bought a 68 Hemi had a 10 blade black plastic impeller, not 100% positive. Engine was sitting for 9 years so replaced it. Tried to remove it snapped if I remember correctly.