Michigan Motorsports NGK BR7EF 3346 Spark Plugs Set of 8 Nickel Copper for LS Engines

NGK BR7EF 3346 Spark Plugs Set of 8 Fits 19972013 LSBased V8 Engines 48L 53L 57L 60L 62L 70L These NGK BR7EF VPower NickelCopper spark plugs are two heat ranges colder than the stock plugs for most LS car truck engines and have a nonprojected tip for power adder use They feature a specially designed Vgrooved center electrode improving ignitability and reducing quenching NickelCopper 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 Pregapped to 028 Coldrolled threads prevent crossthreading and damage to cylinder heads Trivalent plating eliminates need for antiseize on threads Highgrade alumina silicate ceramic creates a stronger insulator to reduce dielectric punchthrough 98 pure copper core increases heat dissipation for reliable starts and prevents spark plug overheatin 90 degree VGroove 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 58 hex nonprojected tip One heat range colder than stock for LS7 LS9 LSA engines Two steps colder than stock heat range for all other LS engines.