Spark plugs for older N351 heads

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#1 (permalink)

05-28-2012, 09:59 PM

SF_SN888KE SF_SN888KE is offline

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Join Date: May 2006

Location: San Francisco, CA

Cobra Make, Engine: Cutting Edge Replicas, 427 World block SBF, TWM Injection

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Spark plugs for older N351 heads

Have a set of older N351 heads on 347 SBF 2004 motor. I noticed the newer N351 heads use a spark plug with a 0.708" reach. My heads use 14mm 5/8" hex with 0.460" reach. Is this right????

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Ron; SF_SN888KE
Cutting Edge Replicas 427
Shell Valley Daytona #27

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