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 Diameter14mm
Thread Pitch1.25mm
Seat Type Tapered
Reach11mm (7/16")
Hex Size5/8" (16mm)
Terminal Type Solid
Overall Height ISO
Gap.031" (0.8mm)
Center Electrode
Material Nickel
Type V-Cut
Size2.5mm
Projection Projected
Ground Electrode
Material Nickel
Type Standard
Quantity1
Specifications
Resistor No
Resistor Value1K Ohm
Heat Range7
Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft.
