Compare Maximum number of 4 items selected Champion Racing Spark Plug - 697 Part #: 697 Line: CHP Champion Racing Spark Plug Manufacturer's Defect Warranty Seat: Tapered Thread Size: M14 Heat Range: 53 Hex Size (mm): 16mm Hex Size (in): 5/8 Inch Preset Gap (in): 0.025 Inch Preset Gap (mm): 0.60mm Thread Reach (in): 0.708 Inch Resistor Plug: No Center Electrode Tip Material: Nickel-Copper Alloy Ground Electrode Tip Material: Nickel Show More Show Less