Engine News/Holidays 1 month ago Happy Holidays from Engine Builder Magazine Share Tweet Print Email Engine Builder,AuthorView bio Bio Recent Posts Popular Posts Racing Legend Dan Gurney Has Passed AwayMallory Ignition ComponentsRockford Systems Offers OSHA-Authorized Safety CoursesOscilloscope Fundamentals WorkshopMoroso Oil Pan and Transmission Gaskets CP-Carrillo Acquires Arias Pistons BrandFather of Mazda's Rotary Engine Has Died at 95Shell Prepares for Next Generation Oil Spec, API SN PlusHot Rodders Junior Engine Challenge Develops the FutureRacing Legend Dan Gurney Has Passed Away Thanks to all of you who have read and contributed to the magazine this year. Have a safe and happy holiday! Larry Carley They have been developing the plastic Polymotor for over 20 years, but have they actually built any production engine for racing or other applications? It’s a good weight-saving concept but requires metal cylinder liners. You can accomplish the same weight savings with a two-piece magnesium/aluminum block (BMW).