From the racing enthusiast to the person looking to fix his everyday vehicle, Active Engines has the expertise to assist you: Active Engines has more than 30 years experience in the motor sport industry, both automotive and marine. Active Engines is a custom engine building shop. This means Active will develop a specialized engine design, tailored to meet your individual needs. Active Engines does not operate on an assembly-line, mass-production basis. Active performs the machining, assembly and testing in-house, ensuring that each engine receives end-to-end personal attention. When building your engine, Active applies rigorous quality standards, blueprinting throughout. (Blueprinting means Active tests component parts at assembly to ensure they are delivering or exceeding the performance specified by the manufacturer.)