Experience the power and reliability of the Autolite Racing Plug, engineered to meet the rigorous demands of racing. With a 14 mm thread, 0.750 in reach, and a gasket seat, this non-resistor spark plug ensures excellent performance and ignition. Perfect for high-speed applications, it is a must-have for racing enthusiasts looking for superior engine compatibility. Dimensions: 3.5" (length) x 1.1" (width) x 1.0" (height).