Hey, if you don’t want to have to do your head gasket replacement a second time, by a genuine Briggs and Stratton head gasket for your repair Briggs & Stratton Engine 272157, 272157S Cylinder Head Gasket OEM For Lawnmowers Go-carts. For 5HP vertical and Horizontal B&S engines. New old stock, individually packaged. See scale picture for accurate size representation.