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#40784 10/16/2002 7:39 PM | Joined: Oct 2002 Posts: 29 Junior Member | | Junior Member Joined: Oct 2002 Posts: 29 | Does anyone out there know what kind of spark plugs I can put into my stock 230 engine? I've gotten 2 different numbers--r44n & r46n. Which one do I choose before I go crazy?
LET'S GO ISLANDERS!!!
1963 Chevy 1/2 ton fleetside w/'65 Pontiac 215 6cyl.(not the OHC engine!)
1950 Ford 2 door sedan-project
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#40785 10/17/2002 2:50 AM | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | You can use either one.One is hotter than the other.Depending on the maker of the plugs it is either the higher or lower number which is hotter.A good auto-parts store will be able to verify which is hotter. I use hotter in the winter and coler plugs in the summer 
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#40786 10/17/2002 1:20 PM | Joined: Dec 2001 Posts: 146 Member | | Member Joined: Dec 2001 Posts: 146 | 63 Jalopy,
Get yourself a small piece of wire or welding rod, then insert it into the groove around the central electrode in the spark plug. The deeper is the hotter one. You can start with one set, if You for example pick the cooler set and then experience some fouling up, You can swap to the hotter set, or the other way around, start with the hotter one, if detonation or dieseling when shutting off the engine occurs, swap the cooler set. No definetive rules apply, unfortunately I do not have a cross reference between these plugs You have and some others I use here, and also as long as our gasolines are not the very same thing, it'd be also of li'l help.
Alexandre Garcia
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#40787 10/17/2002 1:27 PM | Joined: Oct 2002 Posts: 29 Junior Member | | Junior Member Joined: Oct 2002 Posts: 29 | Thanks for all the info guys. I'm going to try these out for now and keep an eye on things.
LET'S GO ISLANDERS!!!
1963 Chevy 1/2 ton fleetside w/'65 Pontiac 215 6cyl.(not the OHC engine!)
1950 Ford 2 door sedan-project
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