ACCEL 0576S-4 HP Copper Core Shorty Spark Plugs 4Pk

Since the mid 1980’s, Accel’s U-Groove spark plugs have set the standard for high performance spark plugs. Accel engineers developed and patented the U-Groove technology which permitted the spark to develop a much larger, hotter and fuller flash front. That effectively gave a more complete burn of the air/fuel mixture in the combustion chamber. Over the past 25 years engine head design and fuel management technology has changed. As a result, Accel is moving away from the U-Groove construction to the familiar “conventional” style ground electrode. In addition, the upper insulator will now be white instead of yellow, and available in convenient 4-packs.

Bottom line…This one-piece construction spark plug with conventional ground electrode provides exceptional performance and value by producing:

• Hotter Spark/Faster Burn Rate for more power at high rpms
• Improved Throttle Response, Fuel Economy, and Reduced Fouling
• Reduced Mis-fires
• Purified Alumina Insulator to prevent arcing
• Machine-rolled threads to protect heads
• 5/8”Hex
• Resistor Type
• C-Cut Ground Electrode
• Heat Range: 6
• 4/pkg.
• Projected Tip