NGK Spark Plug Racing 8211 R5724-8

NGK Racing Series Spark Plug NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Special insulator nose configurations improve throttle response. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator provides superior strength and better heat transfer. Copper core aids in heat removal. Triple seals prevent leakage. Product Specifications Shell Thread Diameter 14mm Thread Pitch 1.25mm Seat Type Tapered Reach 18mm (0.709\”) Hex Size 5/8\” (16mm) Terminal Type Solid Overall Height ISO Gap .020\” (0.5mm) Center Electrode Material Nickel Type V-Cut Size 2.5mm Projection Projected Ground Electrode Material Nickel Type Standard Quantity 1 Specifications Resistor No Resistor Value 1K Ohm Heat Range 8 Torque Specs Cast Iron 10.818 lb. ft. Aluminum 7.214.5 lb. ft. Part Information Brand NGK/NTK Longevity 30k Miles