This is a package of 1 brand new aftermarket Cylinder Head gasket 2 PC SET (upper and lower) that will fit the Torpedo .23 Green Head, 2 stroke motor. This gasket set is made using very strong .33mm Karropak material for the Upper and .25mm Karropak material for the Lower for superior sealing and laser cut to perfection. We also recommend a drop of threadlock on the screw threads as well.