Accel Ignition 578-6 Spark Plug

ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

• Copper Core Is A Better Conductor Than Iridium Or Platinum Plugs
• Copper Dissipates Heat Much Better Than Other Materials
• "C" - Cut Design Un-Shrouds The Spark Kernel For A Better Burn
• Unlike Iridium Or Platinum Plugs, The ACCEL HP Plugs Are Gapable
• Machine Rolled Threads For Precise Thread Engagement
• One Step Colder Than Stock
• Whether Using On The Street Or On The Strip, ACCEL HP Copper Core Spark Plugs Deliver
• Limited 90 Day Supplier Warranty