a method of converting piston driven engines to operate on electricity . the head is removed from the engine . a solenoid tube , approximately twice as long as the stroke of the engine piston , for identification purposes , called a double length solenoid tube or dlst is fitted with flanges approximately on each end and in the middle , and is wound with suitable wire in layers from end flanges to middle making two separate magnetic coils on the dlst a bar , which can be temporarily magnetized , for identification purposes is called the power magnet , pm is attached to a rod , which cannot be magnetized , for identification purposes , called the power rod pr is fastened to the top of the engine piston . when the engine piston approaches top dead center , tdc , the pm is in the top half of the dlst approximately at this position the bottom magnetic coil is energized pulling the pm and the pr down ; pushing the engine piston down ; turning the crankshaft from 0 degree to 180 degrees . when the engine piston is at bottom dead center , bdc , the pm is as close to the center of the crankshaft as it can be . the top coil is energized , magnetically pulling the pm the pr and the engine piston up ; turning the crankshaft from 180 degrees to 360 degrees , completing the cycle . therefore , by using a double length solenoid tube with two coils , a solenoid magnet bar 16 pushes down on the downstroke and pulls up on the upstroke to the engine piston delivering power to the crankshaft on every stroke . included in specifications is an electrical switching system , two cooling systems and a lubrication system . this method can be applied to any piston driven engine .