Thats the price and it will fit the stock engine mount. It requires 4 degrees right thrust. I drill the mount and tap them out and simply screw the engine mount screws into the mount arms eliminating any locking nuts. Holds fast and will never vibrate out. My UCD .60 weighs 8# 6.4 oz. and will hang @ 1/4 to 1/3rd throttle with a 16/6 APC. That leaves 2/3rds throttle range for pull out. With the pressurized system you get the option of placing the tank on the CG. The only place to be. Nice part is, once seated and dialed in correctly, you will have THE most hassle free, dependable engine out there. Fuel, start, fly. Check out the YS Club thread in 3D flying. There's lots of good info and great people willing to help. Good luck, Joe