AC Delco equivalent spark plug

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05-11-2006, 12:23 PM

desi

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AC Delco equivalent spark plug

Looking for AC Delco part number for Champion RC-12YC spark plug. Edelbrock recommends running Champion plug.

I don't like to run Champion in my lawn mower, let alone the Vette

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05-11-2006, 02:22 PM

Crash80

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I have no idea but I have had great luck with AC Delco Rapid Fire #2 plugs in my 80. If nothing else this bumped ya back up to the top.

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05-11-2006, 02:42 PM

gonzo14

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forget about Champion, run the AC Delco R45 plug, it runs like a "champion"

Gonzo

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05-11-2006, 03:07 PM

rastadr

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ive had most success with ac delco r45ts the dart folks suggest autolite ar133 for their heads with small blocks and i may give it a shot out of curiosity.

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05-14-2006, 01:08 PM

cardo0

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Champion RC-12YC is a cold plug.

Quote:

Originally Posted by desi

Looking for AC Delco part number for Champion RC-12YC spark plug. Edelbrock recommends running Champion plug.
I don't like to run Champion in my lawn mower, let alone the Vette

Try AC Delco R_43T(S - for extended tip, makes it act like a little hotter plug) or R_44T(S). That Champion RC-12YC doesn't like to run when cold - only once eng is good and hot. U could try Champion RC-14YC as the next step hotter.

cardo0

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