RV 452 Heads....spark Plugs
Hey Mopar Tim, I found an article you've replied to years ago talking about the spark plugs needed for 452 heads with the peanut plugs. You referenced Mopar 4091938 or Champion OBL9Y, currently I cannot find either of these spark plugs anywhere on the market for purchase. Do you have a cross reference plug you could recommend?
Champion RV9YC?