GASKET IN MIDDLE SECTION OF ENGINE WAS SO NARROW IT FAILED COMPLETELY. THE CAR OVER HEATED MANY TIMES AND NO PROBLEM COULD BE FOUND AT TIMES IT OVER HEATED. REPLACED MANY PARTS THERMASTAT, RADIATOR,CATILITIC CONVERTER TESTED. WHEN MID SECTION DISASSEMBLED THE GASKET WAS SHOWN TO ME AND IT WAS UNDOUTEDLY A POOR DESIGN. TOO NARROW TO HOLD ON ANY VEHICLE.