V-Power Racing
NGK's V-grooved center electrode moves the spark to
the outer edge of the electrode for improved ignitability in all
combustion chamber conditions. This configuration is especially
helpful for throttle responsiveness, quicker corner exits, and more
power on the bottom end in a drag race engine.
NGK V-Power Racing Spark Plugs are available in a wide variety of heat
ranges to fit most drag race, circle track or road racing applications.
The high-purity alumina silicates used in the insulators of NGK Spark Plugs
helps keep the spark plug tip warm enough to burn off deposits at low-speed,
yet still be able to transfer enough heat during high-speed operation to prevent
detonation and pre-ignition.
NGK V-Power Racing Spark Plugs are available in both projected and non-projected
nose configurations.
THREAD SIZE (HEX SIZE) |
Part No. |
Heat Range |
Firing End |
14mm x 3/8" (13/16") |
R5670 |
5,6,7,8,9 |
Projected |
14mm x _" (5/8") R5671A R5671A 14mm x .460" (5/8") Taper Seat R5673 R5674 |
R5671A R5671A |
7,8,9,10,11 8,9,10 |
Standard Projected |
14mm x .460" (5/8") Taper Seat |
R5673 R5674 |
6,7,8,9,10 6,7,8,9,10 |
Standard Projected |
14mm x .708" (5/8") Taper Seat |
R5724 |
8,9,10 |
Projected |
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