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NGK Spark Plugs FR5

V-Power Resistor Spark Plug 14mm x 3/4" Reach

NGK Spark Plugs FR5

739-FR5

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NGK Spark Plugs FR5 V-Power Resistor Spark Plug 14mm x 3/4" Reach $3.69
V-Power Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat

  • Specifications:

    Manufacturer's Part Number:
    FR5

    Modern, lean-burning, fuel-efficient engines call for new lower sparking voltage requirements. NGK Spark Plugs responded by developing V-Power Spark Plugs with V-groove center electrodes. The V-groove center electrode forces the spark to the ground electrode's outer edge, placing the spark closer to the air/fuel mixture to ignite it quicker for more complete combustion (thus greater power & less harmful emissions).

    Today's performance engines are often high-compression/high-stress: supercharged, turbocharged, or fed by nitrous oxide. Ideal for high-performance street and race cars, NGK's patented V-groove design allows an ignition system to spark easily in such dense air/fuel mixtures. The flame kernel grows rapidly and enables an engine to potentially make more power because it's operating more efficiently. As a bonus, the spark's outer edge location helps limit the quenching effect, reducing misfires caused by high cylinder pressures "blowing out" the spark. V-Power Spark Plugs also use lower ignition firing voltage, which results in faster starts and easier cold starts throughout the life of the plugs. Sold individually.

    Does NGK Spark Plugs FR5 fit your vehicle?

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    FR5 - NGK V-Power Spark Plugs is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from NGK V POWER FR5 SPARK PLUG I recently purchased a set of Trick Flow heads for a 355 (.030 over) small block corvette. I plan on purchasing a set of Side Mount headers. The Trick Flow heads call for the FR5 plug. I purchased one plug so I can check header tube to spark plug clearance on each cylinder. If there are no interference problems, I'll purchase the other 7.
    Date published: 2014-12-02
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