Fed up with cheap crate engines?  Speed-O-Motive offers blue-printed crate engines with hand ported heads and special cam grinds to produce the power and torque you need.  Why settle for someone else's idea of what you need when with a simple call we can design a power plant to exactly meet your needs?  Contact us with your torque or horsepower requirement, fuel, vehicle weight and intended usage.  The key to engine building is in the "combination".  We hand port using Cosworth formula to produce maximum torque at your desired RPM then match with custom camshaft and correct compression ratio for your fuel.  Our cams are ground by Comp Cams using the latest high ramp speed and tight lobe centers producing explosive torque.  All our engines are supplied with three page  BLUEPRINT SPEC. SHEET assuring you in writing the critical clearances are correct.  This is why our engines last so long even in endurance racing.  All parts are balanced within 1/2 of a gram, a tolerance the same weight as a dollar bill.  All machining done on our Rottler F65 machining center with fresh builds leaking down less than 1%!  Check out previous builds listed below then call us.