NGK Spark Plugs
Listed Below are the plugs we stock:
NGK R5671A-10 (14MM 5/8 Hex-Gasket 3/4 R)
NGK R5672A-9 (14MM 5/8 Hex-Gasket 3/4 R)
NGK R5674-8 (14MM 5/8 Hex-Gasket-.460 Reach)
NGK R5673-8 (14MM 5/8 Hex-TAPERED .46 R)
NGK R5724-8 (14MM 5/8 Hex-TAPERED .708 R)CRATE PLUGS
All NGK Racing Spark Plugs feature electrode materials and configurations as follows:
• Electrode materials - Many use precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements.
• Electrode configurations - Fine-wire center electrodes provide better sparking and enhanced ignitability. Fine-wire ground electrodes further improve the ignitability of the plug.
• Insulator configurations - Special configurations are used for the insulator noses to improve throttle response.
What is the heat range of spark plugs?Lower numbers indicate a hotter type, higher number indicate a colder type.