kclark Posted September 30, 2017 Share Posted September 30, 2017 What is currently in the '29 Studebaker are Champion W18. What is everyone's preference for spark plugs for these old engines? Link to comment Share on other sites More sharing options...
keninman Posted September 30, 2017 Share Posted September 30, 2017 That is what I am using but there I think and Autolite 3076 is the same thing and stocked at Oreilly's . I still have my original AC plugs but I am saving them and not running on them everyday. Link to comment Share on other sites More sharing options...
Stude Light Posted September 30, 2017 Share Posted September 30, 2017 (edited) From another post of mine..... I use Champion 1-COM in my Light Six. They are the closest I can find to the originals. I occasionally find them on eBay in NOS condition. I buy the ones with the brass top covers for the period correct look. The attached is my research over the years. If you aren't worried about correct look then the Autolite 3076 or Champion 518 should be readily available. Scott Edited September 30, 2017 by Stude Light (see edit history) Link to comment Share on other sites More sharing options...
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