HP Copper Spark Plug

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Part
ACCEL 578C1-4
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Ford EcoBoost 1.6L, 2.0L and 2.3L I4 engines -One heat range colder - 4-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
  • One step colder than stock
  • Whether using on the street or on the strip, ACCEL HP Copper Core spark plugs deliver!
More Information
PartACCEL 578C1-4
Manufacturer Part Number578C1-4
BrandACCEL
ApplicationFord EcoBoost
Emission Code2
Heat Range1 Step Colder
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
1 Step Colder
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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