TimFX Posted March 19, 2022 Share Posted March 19, 2022 Wondering if anyone knows the type of plug Ill need for my 1927 Chrysler series 60 Roadster. It has the Red Head engine Thanks! Link to comment Share on other sites More sharing options...
$um Fun Posted March 20, 2022 Share Posted March 20, 2022 On my red head I use Champion C-4 plugs, they also cross reference over to Ford Model A and there are whole lot of plugs for those guys. If you are looking for different heat ranges its limited and you might have to run inserts. Link to comment Share on other sites More sharing options...
ArticiferTom Posted March 20, 2022 Share Posted March 20, 2022 Check out info on DBC web site info on plugs . Link to comment Share on other sites More sharing options...
TimFX Posted March 20, 2022 Author Share Posted March 20, 2022 DBC? Link to comment Share on other sites More sharing options...
TerryB Posted March 20, 2022 Share Posted March 20, 2022 https://www.dodgebrothersclub.org/spark_plugs Dodge Brothers Club. 1 Link to comment Share on other sites More sharing options...
lozrocks Posted April 4, 2022 Share Posted April 4, 2022 There is also the option of fitting adapters to change the plugs to a modern 14mm or 1/2 inch. This gives you the opportunity to play around with different temperature plugs to get your car running at its peak. The C4 plug I believe is a reasonably cold plug and some of the industrial alternatives that are sold are even colder. With modern fuels our cars need a hotter plug. I've been running 14mm plugs in my Chrysler 75 (silver dome) for many years and it is currently fitted with Bosch HR8DCV plugs with and adapter. Link to comment Share on other sites More sharing options...
Hans1 Posted May 1, 2022 Share Posted May 1, 2022 my old catalogue lists Chrysler 1924 to 1929 C-4 newer C-16C 0lder list / "50" , 6 and Imp. "8" for 1927 reg. line A Univ. line AA Do you have info in the owners manual? Link to comment Share on other sites More sharing options...
Narve N Posted May 1, 2022 Share Posted May 1, 2022 I started out with standard Model A plugs in my Series 65 engines, but both engines appear to run better with these W18 plugs that also are slightly longer reach. My engines are however with Silver Dome heads, might be a clearance issue with Red Head? https://brillman.com/product/7-8-champion-spark-plug-75-reach/ Link to comment Share on other sites More sharing options...
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