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NGK Racing Spark Plug, Heat Range 10, (Set of 16) (03-08 5.7L, 06-10 6.1L, 11+ 6.4L) - R7448A-10

Product Code: 95811
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High Horse Performance is Veteran Owned & Operated

NGK racing spark plugs are built to withstand the severe mechanical and thermal shock associated with high-revving, high-compression engines. NGK racing plugs feature special electrode materials—precious metals like platinum or gold/palladium—for greater durability and low voltage requirements. Fine-wire center and ground electrodes provide better sparking and enhanced ignitability. And, the unique arrangement of insulator noses improves throttle response! Whether you're a weekend warrior or an expert racer, rocket your way to victory with racing spark plugs from NGK—the people who spark winners!


  • Manufacturer Heat Range: 10
  • Electrode Tip Material: Nickel alloy
  • Electrode Core Material: Copper
  • Center Electrode Type: Projected
  • Spark Plug Thread Size: 14mm
  • Spark Plug Reach: 25mm
  • Spark Plug Seat Style: Tapered
  • Wrench Diameter: 5/8 in.
  • NGK Sku: 95811