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Old 05-11-2010, 08:56 PM   #11
Stan/MO.
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Join Date: May 2010
Location: Hannibal, Mo.
Posts: 124
Default Re: Radioactive Spark Plugs!

I have a box of these that are T-30, The thread dia. looks about 3/8". I think they fit a 216 c.i. chevy. Does yours have a date on the inside of the top? Mine has Oct.23 1941. I had forgot I even had them. Thanks for reminding me. "COOL"

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