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NGK BR7EF #3346 Spark Plugs - Set of 8 Nickel Copper for LS Engines

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$43.65

$ 20 .87 $20.87

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About this item

  • NGK BR7EF 3346 Spark Plugs - Set of 8 Fits 1997-2013 LS-Based V8 Engines 4.8L 5.3L 5.7L 6.0L 6.2L 7.0L
  • These NGK BR7EF V-Power Nickel/Copper spark plugs are two heat ranges colder than the stock plugs for most LS car & truck engines and have a non-projected tip for power adder use. They feature a specially designed V-grooved center electrode, improving ignitability and reducing quenching. Nickel/Copper spark plugs are an economical alternative to exotic metal plugs in applications where extended service intervals are not required.
  • This BR7EF plug is recommended for boosted and nitrous applications (naturally aspirated LS applications should consider the TR5 or TR6 plugs).
  • Factory Pre-gapped to .028" Cold-rolled threads prevent cross-threading and damage to cylinder heads Trivalent plating eliminates need for anti-seize on threads High-grade alumina silicate ceramic creates a stronger insulator to reduce dielectric punch-through 98% pure copper core increases heat dissipation for reliable starts and prevents spark plug overheatin
  • 90 degree V-Groove center electrode allows the spark to occur closer to the outside of both the center and ground electrodes for better flame expansion and improved ignitability NGK spark plugs are tested to the highest OEM original equipment standards 14mm thread, .708" reach, 5/8" hex, non-projected tip
  • One heat range colder than stock for LS7, LS9, LSA engines. Two steps colder than stock heat range for all other LS engines.


NGK BR7EF 3346 Spark Plugs - Set of 8 Fits 1997-2013 LS-Based V8 Engines 4.8L 5.3L 5.7L 6.0L 6.2L 7.0L


Lucus L.
June 29, 2025
Shipped fast
Nick riddell
June 24, 2025
works well with a 100 shot on a stock 4.8 L
Jason
May 1, 2025
These plugs look great and made a huge hp gain! Now it’s hard to keep traction because of all the new found power. It’s like we added a nitrous kit to the car!
Dhorner77
February 16, 2025
Been using NGK plugs for years, always good quality.
Miguel Alexander
January 15, 2025
5 star! Recommended by my tunerThese are a step above the tr6 for nitrous.Running them in a ls1 with zero issue.Buy from a known seller as so many fakes are out there.Michigan motorsports is my go too! Always above and beyond with customer service