PART #1570 FEATURES: Premium Gasket Material Resists Blow-Out High-Temperature Facing Material Fits BBK Twin 56MM Throttle Body Part Number 3501 VEHICLE FITMENT: 1987-1996 F-Series 5.0L or 5.8L Quality Replacement Gasket This BBK Premium reinforced graphite throttle body gasket is designed to give your BBK throttle body equipped 1987-1996 F-Series 5.0 or 5.8 engine a quality, long lasting, secure seal. Fitment BBK high quality replacement throttle body gaskets are great for replacing damaged gaskets or when taking off the throttle body for any reason. Fits with BBK 3501 twin 56mm throttle body.