Building a 1961 Hawk 289 with the aluminum thermostat housing number 1550844. I ordered a stant 13478 but the diameter is too large to fit in the recessed groove in the housing. Does anyone know the correct Stant thermostat number? I found a Stant number 13358 that will fit but they say it is for the early style?
Thanks
Mike D
Thanks
Mike D
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