NOTE: Plugs are sold in quantities of (4), but billed individually. When ordering please change quantity from (1) to (4).

Champion racing plugs are engineered to help engine builders, weekend racers and street performance enthusiasts optimize engine performance. Enjoy the same spark plugs that go into many professional race cars and trucks.

Manufacturer Heat Range: 57

Pre-Gap Size: 0.052 in; 1.3 mm

Ground Electrode Tip Design: Surface Gap

Hex Size: 0.625 in; 15.880 mm

Thread Diameter: 0.551 in; 14.000 mm

Center Electrode Tip Material: Nickel Copper Alloy

Electrical Terminal Type: Non-Removable Nut

Reach: 0.75 in

Ground Electrode Core Material: Nickel Copper Alloy

Resistor Type: No