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 overheating
• 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. 

LS1 LS2 LS3 LS6 LM7 LS7 LS9 L33 LFA LSA LH6 LQ4 LQ9 L76 L92 L99 L96 LC9 LY6 LMG LH8 LR4 LM4 L59 L77