Hi. I am installing a 1983 6,2 diesel engine in a 1959 Chevy Biscayne. Since all the donorengines here in Norway comes from vans, the thermostat house neck sticks up into the air, and I am afraid it will not clear my hood. From the Haynes diesel manual I see pictures of another type of housing where the termostat neck points down towards drivers side. Is that kind of tube hard to find? What will it cost?