quote Adventurer_96:
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However, here’s the kicker – I drive it to get the safety inspection done, and it’s leaking coolant like crazy all over the parking lot. It’s pouring out of the water neck. …….I realize that there’s no inlet in the F4B like the stock manifold for the thermostat, so there’s really no way to make a water-tight seal with a thermostat…..
Pete
However, here’s the kicker – I drive it to get the safety inspection done, and it’s leaking coolant like crazy all over the parking lot. It’s pouring out of the water neck. …….I realize that there’s no inlet in the F4B like the stock manifold for the thermostat, so there’s really no way to make a water-tight seal with a thermostat…..
Pete
Sorry to hear your problems. I just finished converting to Holley 4-Barrell and I used a Ford Alu intake manifold. To refit the water neck I used some gasket cement to hold the stat in the neck while I fitted it to the manifold as there is no recess in the manifold to hold it. The seal is a rubber O-ring type (looks like a figure 8), so no gasket was needed.
My leaked a bit to start with, but it was not the manifold joint, it was the hose joint. I had to fit a second hose clip before it sealed.
Hope that helps.
Your stalling problem, could that be an intake air leak that opens as the engine warms?