Product Description
NGK R5671A-7 Spark Plugs - Set of 8
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.
- NGK Stock # 4091
- Heat Range 7
- 14mm Thread, 5/8" Hex Wrench Size
- Non-Resistor
- Copper Center Core, Nickel Electrode
- Gasketed Seat
- .750" Reach
- .032" Gap from factory
