Oil filter housing leaking, can't get it to stop SB 273

Had the same problems and chased it like you. Finally fixed the problem by inserting 1/2 copper pipe sleeve in adapter where bolt fits into sleeve. If the bolt you have is not tight around the sleeve, problems will continue. Using the gasket kits is correct, but the adapter must be snug around the bolt or the gasket sets don't have a chance. With the copper sleeve in the adapter it help all the gaskets seal even the copper one used on the blot that comes with the kit. If you need a picture drawn, PM me.