water pump

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mikedevore

mikedevore

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Small block water pump, what are you using to block off the heater & by-pass hose openings besides rubber caps & clamps?
 
The magnum crate I bought had the water pump bypass output tapped for a pipe plug.
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'69 and earlier iron pump- just thread out the nipples and screw in pipe plugs.
'70 and later aluminum pump- Thread the pump fitting as mentioned above. Or loop a piece of hose from the pump to the manifold fitting.
subcom said:
Best investment I’ve made in a long time. CVF water pump with 3/4 NPT threaded inlets/outlets that can be capped. Keeps engine amazingly cool.
Chrysler 318-340-360 Engine Water Pump, High Flow, Aluminum
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Nice find on the CVF pump!
The Speedmaster pump could be an option, too; although I've never seen one in person... but seems kind of pricey compared to the CVF.
Mopar Chrysler SB 318 340 360 High Volume Aluminum Slimline Water Pump
 
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Professor Fate said:
'69 and earlier iron pump- just thread out the nipples and screw in pipe plugs.
'70 and later aluminum pump- Thread the pump fitting as mentioned above. Or loop ta piece of hose from the pump to the manifold fitting.

Nice find on the CVF pump!
The Speedmaster pump could be an option, too; although I've never seen one in person... but seems kind of pricey compared to the CVF.
Mopar Chrysler SB 318 340 360 High Volume Aluminum Slimline Water Pump
Click to expand...
CVF runs promos on EBay at times. I got mine for $50
 

Would you mind sharing with us what where who etc? on the pump?
 
67Dart273 said:
Would you mind sharing with us what where who etc? on the pump?
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A few different companies sell the same pump. CVF, PRW, Edelbrock.

Closed back cast iron impellor in a volute housing, with fittings for the bypass and heater core. CVF has the best pricing, as low as $50 on eBay at times.
 
Alfajim said:
Just curious are you running a thermostat if so how, the bypass hose is there for circulation with the thermostat closed without the bypass you can't use a thermostat just a restrictor plate to provide some head pressor for the pump
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no thermostat, just a restrictor, it's on a race car.
 
Alfajim said:
Just curious are you running a thermostat if so how, the bypass hose is there for circulation with the thermostat closed without the bypass you can't use a thermostat just a restrictor plate to provide some head pressor for the pump
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Not true. It’s like any other engine without a bypass hose
 
oldkimmer said:
Not true. It’s like any other engine without a bypass hose
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Actually every car with built with a closed cooling system with a thermostat HAS TO HAVE a bypass to allow for coolant circulation thru the engine on warming up even those with the thermostat in the bottom hose. A lot of cars use the heater system for the bypass to facilitate quicker warming of the heater it is plumbed from the high pressure outlet side to the water pump inlet low pressure side.
 
My engine builder (well respected on this site) welded up the bypass outlet on my water pump and told me to drill a hole in my thermostat on a 99% street driven vehicle.

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BrianT said:
My engine builder (well respected on this site) welded up the bypass outlet on my water pump and told me to drill a hole in my thermostat on a 99% street driven vehicle.

View attachment 1716399580
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Yeah we used to do that on Jaguars as a regular maintenance routine so when filling the cooling system it would not air lock and overheat. Did it a lot on American cars for the same reason.
I am guessing you don't have a heater from the pictures "burrrr" how quickly does it warmup and no water loss?

Jim O
 
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