The Ford Barn

Brian · 08-24-2024, 04:54 AM

I'm running some early Edelbrock heads, looks like sparkplug reach is about 1/2". regular H10's are too short. Anyone know a suitable plug for these heads? Thanks

tubman · 08-24-2024, 09:08 AM

Delete

19Fordy · 08-24-2024, 10:54 AM

Brian: Peruse the info. on this Google search for: WHAT SPARK PLUGS FOR EDELBROCK HEADS?

https://www.bing.com/search?q=spark+...ANAB01&PC=HCTS

drolston · 08-24-2024, 11:00 AM

NGK B-6L have a little over 7/16" reach and should work fine. Or if you want a little hotter plug, the NGK B-4L.

Bored&Stroked · 08-24-2024, 12:51 PM

There are a LOT more 7/16 reach plugs than 1/2" reach plugs.

If it was mine, I'd be making custom spacers (out of copper) to position 3/4" reach plugs exactly where you want them. There are tons of 3/4" reach plug options - which is why all the newer Eddy heads (and other brands) have switched over to 3/4" plugs.

Brian · 08-25-2024, 04:34 AM

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Using this chart, I've figured i need NGK B6HS, which cross references to Champion L86C. These plugs have 1/2" reach.

https://www.ngk.com/ngk-spark-plug-numbering-systems

08-24-2024, 04:54 AM	#1
Brian Senior Member Join Date: May 2010 Location: Masterton, New Zealand Posts: 3,998	spark plug recommendation I'm running some early Edelbrock heads, looks like sparkplug reach is about 1/2". regular H10's are too short. Anyone know a suitable plug for these heads? Thanks __________________ Unfortunately, two half wits don't make a whole wit!

08-24-2024, 09:08 AM	#2
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 11,639	Re: spark plug recommendation Delete

08-24-2024, 10:54 AM	#3
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 11,605	Re: spark plug recommendation Brian: Peruse the info. on this Google search for: WHAT SPARK PLUGS FOR EDELBROCK HEADS? https://www.bing.com/search?q=spark+...ANAB01&PC=HCTS

08-24-2024, 11:00 AM	#4
drolston Senior Member Join Date: Jun 2014 Location: Williamsburg, VA Posts: 1,811	Re: spark plug recommendation NGK B-6L have a little over 7/16" reach and should work fine. Or if you want a little hotter plug, the NGK B-4L.

08-24-2024, 12:51 PM	#5
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,723	Re: spark plug recommendation There are a LOT more 7/16 reach plugs than 1/2" reach plugs. If it was mine, I'd be making custom spacers (out of copper) to position 3/4" reach plugs exactly where you want them. There are tons of 3/4" reach plug options - which is why all the newer Eddy heads (and other brands) have switched over to 3/4" plugs.

08-25-2024, 04:34 AM	#6
Brian Senior Member Join Date: May 2010 Location: Masterton, New Zealand Posts: 3,998	Re: spark plug recommendation Sponsored Links (Register now to hide all advertisements) Using this chart, I've figured i need NGK B6HS, which cross references to Champion L86C. These plugs have 1/2" reach. https://www.ngk.com/ngk-spark-plug-numbering-systems __________________ Unfortunately, two half wits don't make a whole wit!