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07-30-2013, 08:56 AM
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#1 |
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Join Date: Jan 2005
Location: Milwaukee, WI
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Aluminum BBC - Spark Plugs
I'm looking for spark plug recommendations on a 427 BBC street/strip motor with GMPP aluminum heads, 10:1 compression, .570 lift flat tappet cam. Using a mixture of premium and race gas. I'm hoping for actual part numbers, not just a brand preference. Of particular interest is the heat range suggested, as well as whether I need a .460 or .750" reach. Thank you in advance.
Ben Kallies B/S 3069 |
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07-30-2013, 12:50 PM
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#2 |
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Join Date: Nov 2005
Location: Waldorf Md
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Re: Aluminum BBC - Spark Plugs
Ben,
Edelbrock calls for a Champion RV12YC They make the heads as far as I know so that should be a good starting point.
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Bill Koustenis |
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07-30-2013, 02:04 PM
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#3 |
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Re: Aluminum BBC - Spark Plugs
RC12YC Champion. It's 0.750" reach, projected tip, and 5/8" hex. Easy to find, affordable, reliable, and consistent.
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Alan Roehrich 212A G/S |
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07-30-2013, 07:18 PM
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#4 |
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Location: Waldorf Md
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Re: Aluminum BBC - Spark Plugs
My bad, I could have sworn the catalog at the shop said RV12 ??? Just looked at the web site and sure enough RC12
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Bill Koustenis |
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07-31-2013, 12:23 PM
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#5 |
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Re: Aluminum BBC - Spark Plugs
Alan; Bill,
Thank you for your replies. I have one follow-up question: I notice that both of these are "resistor" plugs. Are resistor plugs better than non-resistor plugs in a hi performance application, or doesn't it matter? Thanks -Ben |
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