** IN STOCK SHIPS TODAY ** RBS has brought on this Autolite spark plug for blown nitro Hemi applications as some customers have said they prefer this spark plug in their racing application.
Autolite Racing Series plugs include all the features of their conventional plugs, but are built with extreme engine conditions and durability in mind. Here are a few features of the Autolite #AR5383 spark plug, Chromium Nickel alloy ground and center electrodes, copper core center electrode allows for increased conductivity and heat control, 14mm threads with 13/16" hex.
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