NGK Standard Non-Resistor Spark Plugs - Set of 32 for High Performance Racing & Sports Cars | Compatible with Track, Drag, and Street Racing Applications

Kit Content:32 x NGK Racing Spark PlugsItem Description:Thread Diameter(in): 0.551Center Electrode Core Material: Copper CoreCenter Electrode Tip Material: Nickel w/ V-grooveGround Electrode Quantity: 1Ground Electrode Core Material: Nickel CoreReach(in): 0.75Ground Configuration: StandardInsulator Height(mm): 50.5Seat Type: GasketManufacturer Heat Range: 10Ground Electrode Tip Design(Ohms): StandardResistance(Ohms): 1Pre-Gap Size(in): 0.020Hex Size: 5/8"