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AC Spark plugs (1/3)
 5/10/19 2:14pm
Dblancha79Gold Member
Gold Member
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Weatogue, CT - USA

Vette(s):
1979 C3 L82 350 cu in


Joined: 6/29/2015
Posts: 38

Does anyone know a substitute spark plug to replace the AC R45TS Acniter11? I need the shorter plug to clear my wrapped headers. Thanks C3 79 L82.



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"Made to be run hard"
Simsbury, Ct.
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Re: AC Spark plugs (2/3)
 5/10/19 2:47pm
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 554

I have never seen AC spark plug shorter than that. You could always take the wrap off of the headers and have them Jet-Hot coated. I was amazed at how much cooler my friend's '66 427 with cast iron manifolds ran after we had them coated. It sure made tuning a lot easier when you didn't have to wait a half-hour between runs for it to cool off.



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1973 L-82 4 spd

Re: AC Spark plugs (3/3)
 5/11/19 1:28pm
Dblancha79Gold Member
Gold Member
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Weatogue, CT - USA

Vette(s):
1979 C3 L82 350 cu in


Joined: 6/29/2015
Posts: 38

Thanks, I wasn't looking for shorter than the R45TS just another manufacturer as these are no longer available in shorter style. On the C3 face book site I was told Accel makes a U groove header plug #8199 that works. I ordered a set from Advance auto parts. 



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"Made to be run hard"
Simsbury, Ct.