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.

• One Piece Design - Won't break off in head during removal like two piece designs
• The 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

Details:

• Brand: Accel
• Quantity: 8
• Cylinders: 8, 10
• Heat Range: 1 Step Colder
• Projected Tip: No
• Reach: 0.8125
• Resistor: Yes
• Seat Type: Tapered
• Style: Copper Core
• Thread Pitch: 1.25mm
• Torque Specification: 20-25 lb.ft