Vintage Spark Plugs vs Todays Spark Plugs...?
06-14-2008, 11:42 PM
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Vintage Spark Plugs vs Todays Spark Plugs...? So, this guy I'm doing some work for has thousands of original AC plugs from 60s and 70s that are new, so we're chucking them on eBay since car collectors and builders of those eras like having OE plugs for their cars, and since they are apparently resistorless plugs.
So, if we ran them in our LTx motors, would there be any benefit to it? There's quite a few R44TS and about 96~ R45TSX plugs available which both are the style of ours. I just don't remember which ours take, and if 45 is hotter or colder than 44.
I know it's a weird question, and I wouldn't be surprised if no one even knew, but doesn't hurt to ask
Here's one that is the only one so far I've found in this style box that I'm hanging onto (it made this group 71, so I figures 70 was a nice round number lol). AC Delco "Fire Ring" (comes with a copper compression gasket). The text that is blurry thanks to my old crappy camera says "Boost Power - Save Gasoline". On the one side it also lists 8 patents and says "MADE UNDER ONE or MORE of the FOLLOWING UNITED STATES PATENTS" (in that weird caps, no caps, caps way).
So, if we ran them in our LTx motors, would there be any benefit to it? There's quite a few R44TS and about 96~ R45TSX plugs available which both are the style of ours. I just don't remember which ours take, and if 45 is hotter or colder than 44.
I know it's a weird question, and I wouldn't be surprised if no one even knew, but doesn't hurt to ask
Here's one that is the only one so far I've found in this style box that I'm hanging onto (it made this group 71, so I figures 70 was a nice round number lol). AC Delco "Fire Ring" (comes with a copper compression gasket). The text that is blurry thanks to my old crappy camera says "Boost Power - Save Gasoline". On the one side it also lists 8 patents and says "MADE UNDER ONE or MORE of the FOLLOWING UNITED STATES PATENTS" (in that weird caps, no caps, caps way).
Last edited by Formula350; 06-15-2008 at 01:08 AM.
06-15-2008, 09:29 PM
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R44 plugs are one heat range colder than the R45s. The one with the copper comression gasket fits a much older style cylinger head. I can't remember but it is either too long or too short for an LTX in addition to the copper gasket having the wrong pitch to match the bevel on your heads. The ones with the correct bevel and heat range should work just fine in an LT1. Other than a little radio noise you would never know the difference.
Nice find on the old box. I would definetly hang onto that one.
Nice find on the old box. I would definetly hang onto that one.
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06-15-2008, 11:23 PM
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I didn't plan to run the Fire Ring in my car, I know the difference in them all. I was just mentioning them all. The 44LTS and 45TSX both are our style plugs though.
My buddy tried to steal that plug before the day was out lol I saw where he put it, and before door close, I just yoinked it back loll
My buddy tried to steal that plug before the day was out lol I saw where he put it, and before door close, I just yoinked it back loll
