This is the 17.5 turn Vortex Ultimate Stock 540 motor from Team Orion. Blinky Stock racing has become an incredibly popular and competitive class of racing. Drivers are constantly looking for ways to improve their performance on the track. Team Orion's R&D department has answered the call once again with the Ultimate Stock motor range. These ultimate performance stock motors have been specifically designed for the blinky stock class. Team Orion started from scratch and designed a whole new motor from scratch: a stock specific stator design, 3-piece motor can construction, wide-range adjustable timing, premium grade components, you name it, Team Orion's Ultimate Stock motors have it! The best part is they deliver class-leading performance without requiring any optional parts, tuning rotors or having to take out a second mortgage to afford it. If you're looking for a competitive edge against your competition, look no further than the Vortex Ultimate Stock motors!