Billet head kit for the Chung Yang F230 and F270. Features removeable dome for easy compression changes and a 4 bolt girdled head shell for strength. This kit has a 34mm bore size which is standard on the F270 and it will turn an F230 into an F270 with the use of a +2mm stroker(not included). This kit includes a 34mm bore size CY F270 cylinder that we CNC machine to work with our billet head shell. Also included is the billet head shell, removable dome, .012" copper head gasket, base, intake, and exhaust gaskets, and necessary hardware. To use this on the F230 you must also use a +2mm stroker and a 34mm piston kit(not included).