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Old 10-07-2020, 02:10 PM   #15
tdangle
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Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,209
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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Terry

1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC
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