By pass hose


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By 55 GLASS TOP - 4 Years Ago
Hello is the hose between the water pump and the thermostat housing 1/2 inch thanks 
By oldcarmark - 4 Years Ago
Should be 5/8" if You have the correct Stat Housing. The early 54's used a 1/2" as the Nipple on the Stat Housing was smaller than 55+. Just cut a piece of 5/8" Heater Hose.