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Old 10-06-2020, 11:58 AM   #1
msg
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Re: Water pump for an L31?

Looks like the 45 degree hose barb fitting is what I need just like you said. The instructions on this intake assume the user knows anything about them. No listing of what the holes are for in the manifold. Compared to my original 350 setup the only ones I recognize are the thermostat housing large port and the water pump I assume is the port I threaded the barb they supplied into. The other 2 I think were for heater hoses? I guess I need plugs then if thats the case since the vintage air system is self contained.

How do you mold the hose to get the angle right?
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Old 10-07-2020, 02:10 PM   #2
tdangle
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Re: Water pump for an L31?

I could not get the bypass to fit on mine using the fitting on top of the water pump and the manifold fitting you show in the picture. I ended up with a 90 degree fitting for the fitting on top of the manifold water passage and a 90 at the water pump. The top radiator hose just barely clears the bypass hose, but it worked. This was with a short water pump. I think you might get away with a straight fitting on the water pump and a 90 at the intake manifold
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