I do not understand what you mean. Stat housing (factory) has nothing to do with sender. I am talking about an aftermarket spacer that goes UNDER the stat, that has 1 or 2 fittings for hoses or senders. The housing you use on top has nothing to do with that
Be careful, tho. There was a change in stat size and housing bolt spacing, I do not remember, anymore what years were what. (I have an aftermarket manifold, drilled for both bolt spacings)
