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10. Another area in which the Hilborn manifold deviates from the factory design is that it does not have a mounting pad for the thermostat housing. Instead, the Hilborn kit includes a remote-mount Moroso housing. Jeff made a custom stainless bracket to mount the thermostat housing to the water pump. Two short sections of -8AN hose, along with four 90-degree hose ends, connect the front cylinder head water passages to the housing.