Abstract: An internal combustion engine; having block valley radiator core, with electrical water pump and air cooling fans, cooling and circulating water through block water passages, and having block valley oil reservoirs positioned under block valley radiator core for oil storage cooling and directing oil through oil passages. Includes; cylinderhead having horizontally rotating valveshaft; having separate axially spaced intake and exhaust valvepockets between ringseals, being timed rotated, centrally above dual spark plug ignition combustion chambers, over piston cylinders, and communicating centrally between cylinderhead intake and exhaust chambers—having port passageways, with connected intake and exhaust manifolds, providing strainfree; opening and closing combustion chambers, highspeed valvepocket(s) rotation, highflow air-fuel intaking and combustion exhausting—velocity capabilities. The valveshaft provides installation and removal without removing cylinderhead from engine block.

Abstract: *WHAT IS NEW IN THE ART OF THIS INVENTION—Of Worldly Internal Combustion Piston Engines—Is;