HP Copper Spark Plug

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Part
ACCEL 578-6
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3.5L V6 engines -Stock heat range - 6-pack

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.

HP Copper Spark Plug Features

  • 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
  • Stock Heat Range
  • Whether using on the street or on the strip, ACCEL HP Copper Core spark plugs deliver!
More Information
PartACCEL 578-6
Manufacturer Part Number578-6
BrandACCEL
ApplicationFord EcoBoost
Emission Code2
Heat RangeStock
Part TypeSpark Plug
Reach1"
Seat TypeTapered
StyleCopper Core
Thread Size14mm
Typeproduct

Gap
.030"
Reach
1"
Style
Copper Core
Length
Standard
Hex Size
5/8"
Resistor
Yes
Seat Type
Tapered
Heat Range
Stock
Application
Ford EcoBoost
Thread Size
14mm
Product Type
Spark Plug
Thread Pitch
1.25mm
Emission Code
2
Projected Tip
Yes
Torque Specification
7.2-14.5 lb.ft.

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