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Performance Series Spark Plugs - A/C .460" reach, 5/8" hex, taperedĀ 

Performance Series Spark Plugs - A/C .460" reach, 5/8" hex, tapered

These are the most commonly used performance plugs today! These are a stock replacement for Mercruiser BBC and SBC motors.

Ribbed Suppressor Seal, which extends resistance and prevents spark 'flash over' and misfire. Nickel-chrome alloy sheathing to help prevent corrosion on center electrode.

  • Heat Range: 3
  • Resistor Plug: Yes
  • Gap (In): 0.040 Inch
  • Thread Reach (In): 0.430 Inch

Note: Colder plugs work best in supercharged applications and warmer plugs in general performance uses. Most cast iron cylinder heads use tapered spark plug while most aluminum heads use a gasket style plug.

MSRP: $6.99
Your Price: $4.99
You Save: 29% off MSRP!

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# of Ratings: 0