Thread: NGK Spark Plug
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Old 08-25-2008, 06:10 PM
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Norman Norman is offline
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Join Date: Jan 2008
Location: pampa texas
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Default Re: NGK Spark Plug

if the piston could tap the plug your gap would disappear in a heart beat and your engine would quit the plug would ground out and could do some damage to the piston and bearing and be bad for other parts in there.
these engine have a hemi shaped combustion chamber and your plug would have to really stick down into the combustion chamber quite a bit to have the piston smack it.
most stock reach plugs should not be a problem but if your worried best to measure the clearance with the piston a tdc and then measure the plug to make sure they don't touch each other.
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