Engine News/Holidays 4 months ago Happy Holidays from Engine Builder Magazine Share Tweet Print Email Engine Builder,AuthorView bio Bio Recent Posts Popular Posts Shop Solutions - April 2018Royal Purple Will 'Pump Up the Purple' to Support Lupus Awareness MonthMAHLE Performance Bearings for the Sport Compact/Import MarketHot Shot's Secret Announces NHRDA World Finals VIP Trip GiveawayFirst STEM Days Opens Eyes for 94 Fifth Graders to the Engine World FRAM Launches Innovative Website for Better User ExperienceEdelbrock Engine Blocks for Chevy ApplicationsRed Wing Shoe Company Spotlights Diesel MechanicThree Hot Rodders of Tomorrow Teams Qualify at Summit Piston Powered AutoramaJobs of the Week - April 16-20 Thanks to all of you who have read and contributed to the magazine this year. Have a safe and happy holiday! Comments (1) Larry Carley Dec 22, 2017 at 12:10 pm 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). Comments are closed.