Plugging the by-pass hose pros and cons

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Cravin'sCuda

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I have a 360 with magnum heads and airgap magnum intake. The bypass hose just doesnt fit right and I cant seem to find a hose that would work better. I found this on morparts and was wondering if this would be a solution.](*,)
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hi, it would be a good idea to drill 4-6 holes in thermostat flange , so water can circulate before thermostat opens, this is the function of bypass hose.
try drilling holes at .090- .125 diameter.
 
What do you think about running the bypass to the upper radiator hose...

This is what I did on my amc engine due to an electric water pump. I haven't noticed any adverse effects. The engine still heats up as quick as any other...A machine shop used two pieced of scrap aluminum pipe. Cost about 20$...

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I don't know about AMC's but if you do that on an LA you are on the wrong side of the thermostat. The coolant is supposed to circulate between the water pump and the intake before the thermostat.

Chuck
 
The bypass hose relieves back prseeure on the water pump when the thermostat is closed. If nothing else the block will cost mpg and horsepower .
May shorten the life of the pump.
 
The bypass hose relieves back prseeure on the water pump when the thermostat is closed. If nothing else the block will cost mpg and horsepower .
May shorten the life of the pump.

I agree on that, I would still run it. At the very least have some holes in the t-stat, or maybe run the line that goes to the heater core into the intake manifold?
 
The by-pass hose is to keep the water flowing thru the motor while the thermostat is closed to keep from getting hot spots. If the water was not flowing in the motor can you imagine how hot the water will get in the head above the combustion chamber, too hot. You have to keep the water flowing, either with a by-pass with a thermostat or no by-pass but then you can only use an orfice in place of the thermostat.

Chuck
 
Why not just purchase a couple of bypass hoses and cut them up and use a coupling to connect them together?
 
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