correct spark plugs for 302 - Team Camaro Tech
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post #1 of 7 (permalink) Old Mar 27th, 04, 06:24 PM Thread Starter
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I just rebuilt my 302dz for my z/28 and need to know if I can use my acniter 43 delco plugs that I purchased if I have an electronic distributor and not the original 480 one. Everything else on the engine is stock. The 350 that was in the car had R45's in it. I just don't know if the 43's, which by all info I can find were correct from the factory, will work or not. If anyone can help, I would really appreciate it. Thanks Team Camaro.

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post #2 of 7 (permalink) Old Mar 28th, 04, 09:03 AM
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For your 69 Z it originally came with R43 plugs. No matter, the spark plugs don't care what distributor you have. They're happy with any spark they can make......

[ 03-28-2004, 11:19 AM: Message edited by: dyno jonn ]

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post #3 of 7 (permalink) Old Apr 1st, 04, 10:18 AM
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AC 43's are way too cold for normal street driving, and will foul around town; 44's will too, although to a lesser extent. I run AC R45S plugs in my Z and have no more fouling issues. [img]graemlins/thumbsup.gif[/img]

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post #4 of 7 (permalink) Old Apr 1st, 04, 10:43 AM
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Ditto John's comment for my '68Z.
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post #5 of 7 (permalink) Old Mar 1st, 05, 09:45 AM
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What gap would you run in the R45S if you have a Pertonix installed?

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post #6 of 7 (permalink) Old Mar 1st, 05, 07:34 PM
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Jerry MacNeish suggested I use AC R44 or R44S plugs.

JohnZ, is your engine original or rebuilt? JM suggested I use an .028 head gasket and the R44 plugs saying "he has spent years getting the mix right for today's gas". I am really confused. I have asked everyone about what to use. [img]graemlins/sad.gif[/img]

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post #7 of 7 (permalink) Old Mar 2nd, 05, 04:14 PM
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It's original. If I ran it hard regularly, I'd probably use 44's - but I don't, so I use the R45S plugs, and have no problems (same plugs I use in my other Corvettes). [img]graemlins/thumbsup.gif[/img]

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