Includes camshafts, lifters and a cam installation kit that includes the cam bearing, cam/crank hardware, kit also includes gasket/o-ring kit that Allows installation of feuling heavy-duty hp+ .0165 "Wand push push puse puse puse puse puse Pusepiece Due to the unstable nature of this 4-valve engine design with one rocker arm Activating Two Valve Springs, Feuling Highly Recommends Running Las varillas de empuje de una pieza sobre varillas de empuje ajustables de instalación rápida para mantener la elevación máxima de leva/válvula y la elevación de redve y reducir los problemas., No para modelos '23 -'24 con motores VVT de 121 ".