Abstract: A method for modification and improvement in internal combustion engine systems utilizing six strokes (1. an intake stroke, 2. a compression stroke, 3. a power stroke, 4. an exhaust stroke, 5. an intake-cooling stroke and 6. an exhaust-cooling stroke) and incorporating changes to the camshaft lobes and valve train timing providing for a 3:1 camshaft to crankshaft ratio allowing for higher revolutions per minute, lower idling speeds, reduced valve float and smoother operation. The system provides for more efficient fuel combustion during the power stroke, which extends past bottom dead center thus increasing power, fuel efficiency, and greatly reduces harmful emissions. The additional fifth and sixth strokes provide for intake and exhaust cooling. The system demonstrates increased reliability, efficiency, and a cooler operating environment while operating with various fuels.