Short Spark Plugs For Headers - Chevelle Tech
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post #1 of 6 (permalink) Old Mar 12th, 08, 2:16 PM Thread Starter
 
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Short Spark Plugs For Headers

Can someone tell me what difference the length is for the short header spark plug VS the standard spark plug comparing plugs for a small block 350.
I have Hooker headers and it's really hard to change plugs so was wondering if shorter plugs would make a difference.

Does one need to change heat range running a short plug?

I found this conversion chart.

http://go.mrgasket.com/pdf/sparkplug..._reference.pdf
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post #2 of 6 (permalink) Old Mar 12th, 08, 2:44 PM Thread Starter
 
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Re: Short Spark Plugs For Headers

I just found my answer..

The overall length has been reduced 1/4" to 3/8" (depending on the specific spark plug) to gain critical air gap space between the spark plug boot and the exhaust manifold or header tube. The shorter spark plug length also can make it easier to install and remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around.
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post #3 of 6 (permalink) Old Mar 12th, 08, 4:37 PM
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Steve
 
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Re: Short Spark Plugs For Headers

I use short style spark plugs and they do give the extra clearence needed to keep the spark plug boot from touching the header. I also bought a low profile spark plug socket to help with removal of the plugs. Its still nice and shiny, havent had a chance to use it yet.

http://buy1.snapon.com/catalog/item....re&dir=catalog
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post #4 of 6 (permalink) Old Mar 12th, 08, 9:03 PM
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Mike
 
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Re: Short Spark Plugs For Headers

Don't feel bad I use a combination of 4 tools to change my spark plugs

YOU KNOW YOU HAVE THE POWER..... AND IF YOU USE THAT POWER BAD THINGS ARE GOING TO HAPPEN!!

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post #5 of 6 (permalink) Old Mar 12th, 08, 9:48 PM
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Re: Short Spark Plugs For Headers

I am going to have the same problem to do accel make short cold or med heat range plugs to work with bowtie aluminum heads
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post #6 of 6 (permalink) Old Mar 12th, 08, 10:32 PM
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Steve
 
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Re: Short Spark Plugs For Headers

Me too...I hope this socket works. Hell, I used to have to pull my engine to change plugs (angle plug heads with straight plug headers just don't get along).
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