Autolite Part No.
Should be a 103 or an AR103 for their "racing" plug.
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Autolite p/n is 103 and are not racing plugs, but are one step colder. P/N AR94 have a cut back ground strap, are 2 steps colder, and are the first step in the racing plug line from Autolite.
