Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

Spark plug gap 68 289

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Old Mar 11, 2006 | 06:44 PM
  #1  
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Default Spark plug gap 68 289

I looked under the FAQ and didnt find any thing so im going to ask here. Whats the gap for a 289 68 mustang on plugs? Thanks.
Old Mar 11, 2006 | 06:49 PM
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Default RE: Spark plug gap 68 289

.034
Old Mar 11, 2006 | 06:53 PM
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Default RE: Spark plug gap 68 289

Thanks.
Old Mar 11, 2006 | 07:34 PM
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Default RE: Spark plug gap 68 289

0.034 is what you need for points installation. But, with electronic ignition such as Pertronix, you can widen them up to about 0.045 for a stronger spark.
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