72jrfan88 Posted January 30, 2016 Share Posted January 30, 2016 Hi everyone. When giving my monte a tuneup i was suprised to see these AC plugs. My custom is a 64k mile car so im thinking they could be. I haven't seen these around to much. Is it possible they could be original or replaced way back before it became acdelco? Just curious thanks! Quote Link to comment Share on other sites More sharing options...
LostnFound Posted January 30, 2016 Share Posted January 30, 2016 I still use those in my old girl. Quote Link to comment Share on other sites More sharing options...
72jrfan88 Posted January 30, 2016 Author Share Posted January 30, 2016 That's awesome. Do they still make these in reproduction? Or do you just find them online? Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted January 30, 2016 Share Posted January 30, 2016 I bought AC plugs from Advanced Auto but don't think it was green like you have. Quote Link to comment Share on other sites More sharing options...
LostnFound Posted January 30, 2016 Share Posted January 30, 2016 I found a couple of sets on-line. 1 Quote Link to comment Share on other sites More sharing options...
MCfan Posted January 30, 2016 Share Posted January 30, 2016 The AC R44T is what came in my first new '70 402 over 45 years ago. I just pulled an identical set out of my current 402 last night. I bought them at Advance Auto last winter. Replaced them with a set of R43TS plugs and have a new set of R43T plugs ready to try after that - bought them last month. AC has not changed the look or design of that plug series in over four decades, to my knowledge. 1 Quote Link to comment Share on other sites More sharing options...
FASTSS454 Posted January 30, 2016 Share Posted January 30, 2016 They maked the tips with yellow paint to show they torqued them on the line, no yellow paint would mean they were replaced somewhere down the line. Quote Link to comment Share on other sites More sharing options...
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