6 cylinder Chevy water pumps (???)

I have a few questions about them.

How many different configurations are there ?
What's the applications (YMM) of those variations/ configurations?

I have one here for a 1972 292. It has 3 hose connections.
1 is heater hose, 2 is lower radiator ( wrong side btw)
What's the 3rd hose go to? It's about 1.25"

 

bypass. The 292 is a truck engine, they work hard, so they have different cooling systems than the 250

I don't know how many different pumps there are all together...pickup trucks from 63-72 used 3 different pumps.

 

Ok, thanks that's a start

 

Is there a long and short version of these too like SBC?

 

not that I know of.

 

Will they all fit into a zips riser ?
In other words same same?

Google images isn't very helpful as narrowing down what I need, but there's clearly a big difference on hose configurations , right and left intake hoses, high and low intake hoses, different depths of pulleys.

 

I don't have the answer to your question but there are two guys I know would:

Tom Langdon - Stovebolt Engine Company (He is a retired GM Engine Engineer who worked extensively on the 250-292 6 cylinders. Drag raced them too. Hole Shot 6

CNC Dude on here.

 

I PMed cnc dude, thanks !

And apparently this was my 10,000 th post

 

292 has a bigger impeller and a bigger hole in the block. A 250 pump will bolt up to a 292 but has a smaller impeller and probably won't cool as well.292 will not fit a 250

 

31Vicky, got your pm and replied. Hope that helps.

 

Could you guys share? I may need the info on my 292 build.

 

Well, in an attempt to prevent mass confusion I was hoping to get some general info on the pumps and then search what I need.

I don't have a 292 engine, I have a 292 pump and its not going to work.

Here's the bouncing ball

392 hemi engine with hot heads BBC water pump adapters. Then a ZIPS BBC water pump riser. I need a pump that will do what I need , and I don't know which pump to hunt down. All I know is that the 292 pump doesn't work and i know why it doesn't work.

Per conversation with John at zips about this he suggested a 292 pump, so that's why I have one of those.
* First the radiator hose off the 292 pump is to drivers side and I need the opposite- to passenger side. Also need it close to horizontal orientation.

*second the fan flange on the 292 pump is too far forward- i need a shorter pump.

If I can figure out which pump to get i should be able to get :
Cool the hemi.~
If its short enough, I may not have to fab a water crossover.
The stock timing cover to work
The stock fuel pump to stay - no electric.
The mechanical fan to fit. - no electric
The engine sitting lower and a flat or flatter floor
A small alternator and simpler electrical system
All in all a much more traditional hot rod.

My problem is that I know very little about the Chevy 6 cylinder water pumps.

 

I'm curious as to what 292 used a driver side radiator hose. I've never seen one on a chevy.

 

typical 250 water pump, note that it looks like you might be able to press the hub down a ways on the shaft.

 

I'm a dumb ass.
Apparently if you just use Two bolts for a mock up and in a hurry , you can get the hose on the drivers side.

 

From reading a lot of your posts, I highly doubt that you are a dumb ass. Just saying....

 

Haste makes waste. Look on all of our shelves at the haste. Jus sayin.

 

Using a Zips riser I use a standard 6 cylinder 230-250 Chevrolet water pump. HRP

 

Not sure if this will help your decision on which pump. Kind of unrelated, bit the technical aspect is what I am discussing.

The engine in my 38 Chevy, a 454 bored .060, used to be in my old drag 70 Camaro. In the drag car, I ran a Moroso elec water pump drive, using one of the fan motors with the small cogged belt. Useful for cooling down the car between rounds, but here is the key: I used to drive this Camaro on the street, even up to 20 miles one-way to work in exact drag configuration with minimal mufflers. It never ran hot or had any problems with keeping cool. So this tells me that it is not really required to have a huge flow from the water pump.

In other words, even though your Hemi is making a lot more heat than the old Chevy 6, the water pump probably moves sufficient amount of coolant. Just make sure your radiator can remove the heat. I think that is where most hot rods have the problem, small radiators and insufficient cooling air flow.

In my 38 now the same water pump is run by the belt off the crank now, but it still runs cool.

 

I suppose this does me no good with a zips ?
235-261 pump ?
http://www.ebay.com/itm/Chevy-235-2...Parts_Accessories&hash=item417d07f6e3&vxp=mtr

 

You can do the same trick on a 250 pump, they just pressed the hub further onto the shaft.

 

A 250 pump is shorter than a 292 pump incase anyone else needs to know.

 

thanks for following through with an answer and info. so many threads leave you hanging.
any pictures of the install?

 

Not the final install, but Here's a mock up photo.
A water crossover/ thermostat housing will be fabricated. It needs to dodge the riser.
Also Hayden clutch fan, 2675 is the shortest ever produced.

 

nice and looks like you have room to spare.

 

remember you can put the fan clutch as close as 3/4" to the radiator core ( closer the better for it read the temps and the fan to pull air instead of circulating it as the fan is set back because of the clutch ) just make sure the hub of the fan has no cracks in it to allow it to pull forward .

 

Somehow the clutch fan being there doesn't surprise me...

Looks good!

 

so Vicky (or anyone else), what are/did you use for the water/thermostat housing on the intake that doesn't interfere with the riser? I'm in need of a solution.
-Pat

 

You'll need to make a crossover /Tstat housing, use the commercially available ugly ass remotes and hoses or use a manifold that has one built in. 1954 chrysler 331 is the only 4 bbl manifold that has It. Edmunds made a 2x4 but they are rare. Other manifolds can be modified. Depends on your skills or wallet I guess. I have the plan to fabricate the crossover.

 

Thanks
Not sure what to make of the clutch fan remark.