[socalliving]

Purchased the o-rings from summit after talking with Billet Specialties and they did not fit. The o-rings they sent would not fit around both the thermostat and return hose areas. If you look at how this is milled you can't use a small and large o-ring; it is one continuos o-ring, meaning there is not two separate grooves for them. I might purchase the ford racing neck for $58 on summit.