Champion 841 J8C Racing Spark Plugs, Gas, 3/8 Reach, Hot, Set/8

Outfit your V8 racing engine with this complete Champion spark plug set.

Projected tip for gasoline. For double hump heads. Most popular for IMCA Modifieds. Recommended for gas. 14mm plug, .375" reach, 13/16" hex.

Plug gap will depend on output of distributor and fuel being used. Most applications using methanol will be at .022" - .025". If your ignition sytem is a higher output, maybe able to go as wide as .030". Gas application should be .030" - .035". You should also consult manufacturer of distributor for their recommendations.

Champion Racing Series plugs include all the features of their conventional plugs, but are built with extreme engine conditions and durability in mind.

• Nickel Alloy Ground and Center Electrodes
• Copper Core Center Electrode Allows for Increased Conductivity and Heat Control
• 14mm, .375" reach, 13/16" hex
• Projected
• Heat Range: Hot (59)

Item Details

14mm, .375" Reach, 13/16" Hex

Spark Plug Application Chart

Champion Spark Plug Guide (GIF)

Champion Heat Range Guide (GIF)

Champion Conversion Chart (GIF)

Spark Plug Gapping Instructions (GIF)