For many years NGK Spark Plugs have been firing racing engines throughout the world and has become an icon in the spark plug industry. Every Racing NGK Spark Plug is engineered to withstand severe mechanical and thermal shock associated with high-revving, high-compression engines.
SOLD INDIVIDUALLY
Features:
- Hex Size: 5/8″
- Insulator Height: ISO
- Manufacturer Heat Range: 8 / 9
- Reach: 26.5mm
- Thread Diameter: 14mm
- Center Electrode Tip Material: Iridium
- Gap Size: 0.028in
What’s Included:
- NGK R7438 Racing Spark Plugs (sold individually)