Black Billet Alloy Thermostat Housing, Small & Big Block (AP6-CM)

High quality black billet alloy thermostat housing to suit all Small & Big Block engines. This housing uses a heavy duty o-ring rather than a gasket to seal & is guaranteed not to leak as long as your manifold flange is straight & not warped! Comes complete with polished stainless steel hex head bolts.

Please note: We highly recommend replacing the thermostat along with the housing which we also stock.