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Champion Sparkplug, RC9YC (FF1600 w/Aluminum Head)

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Brand: Champion Spark Plugs

Champion Spark Plug RC9YC
ThreadReachHexTipHeat Range
14 x 1.25mm0.750"3/4" *ProjectedHot
* This hex allows more clearance for your plug wrench in the SCCA aluminum head than the standard Champion N6YC plugs, which have a larger 13/16" hex.

The Projected Tip style positions the spark an additional 1/8 inch into the chamber and, providing there is sufficient clearance to valves and piston, provides the ultimate in performance.

Initiating the flame front closer to the piston top at a given spark timing has the same effect as advancing the timing. Therefore, maximum timing may be reduced, which helps to reduce detonation and octane requirement while still providing good part throttle response.

For normally aspirated engines only; not recommended for turbocharged, supercharged, nitrous oxide or nitro burners.

This is the second-hottest projected tip C-Series plug available.

Part No.
Stock Status

Condition: New

1 to 7: $3.19 

8 & up: $2.87 

In Stock