NPS Race Engine Services and Kits  Designed for your type of specific racing needs.  We can build you a monster outlaw engine or a spec class legal engine.  Our race engines are meticulously assembled, all machine work is performed in house and blueprinted to our demanding specs. NPS Power-Up Top End Kits  Designed to increase horsepower and torque in late model sportbike engines.  We specifically R&D each kit for optimum performance for the specific model offered. Kits include NPS velocity cylinder head services, adjustable cam sprockets and high compression head gasket. NPS Cylinder Head Services              Offered for all late model sportbikes as well as 4 stroke singles.  We have over 15 yrs Serdi machining, porting and flow testing experience.  From full on NPS Epoxy Velocity heads to NPS competition valve jobs we can get the most out of your application.     Motorcycle Race Engines and Competition Products. Niagara PowerSports Inc.     1-888-570-4NPS   npsengines@gmail.com