Spark plugs

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Old 09-16-2007, 11:45 PM
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Mitchissippi
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Spark plugs

Will AutoLite #25 plugs that were bought to go in a '94 5.0 work in a '78 351M that has Autolite #26 plugs in it now?

They look the same. This 351 has been sitting a while. Oil pump locked up. I replaced the pump and I've bout got it ready to fire up, and have the #25 plugs on hand.

Mitch
 
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Old 09-17-2007, 05:38 AM
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Yes, the Autolite 25 plugs will work.
 
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Old 09-17-2007, 08:07 PM
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Like Jason said, 25's will work, they are just a colder plug. I'm actually running 24's in my 400, but I'm also running full MSD ignition.
 
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Old 09-17-2007, 08:07 PM
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THANKS Jason! AND Branden!

Mitch
 

Last edited by Mitchissippi; 09-17-2007 at 08:11 PM. Reason: forgot sumthin
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