Thrrmostat housing

Thermostat Housing Gasket

follow the directions EXACTLY. Not "that feels about right" you will need an inch lb torque wrench

also be sure the bolt holes are FULLY cleaned out and test fit your bolts in to be sure they are not bottoming out.

I'm going on 4 years with the stock 1967 CI 2bbl 273 intake (lots of pitting on the t stat side of the manifold) and a repo stock t stat cover.

NOT A DROP!

EDIT: I assumed you were working on a V8