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Old 05-14-2015, 05:43 PM   #1
coachman
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Join Date: May 2015
Location: akron ohio- cuyahoga valley national park area
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427 tall deck motor 1972

Help ... does any body know what are correct spark plugs to use in 427 tall deck with original heads - the plug bore makes it tuff to use none tall deck plugs ---is there a special one ?? Thanks
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Old 11-19-2015, 03:26 PM   #2
coachman
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Re: 427 tall deck motor 1972

I found out that AC # CR 42 N is correct plug they have been discontinued so must find em NOS . Regards , Jeff
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Old 11-19-2015, 04:29 PM   #3
MARKDTN
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Re: 427 tall deck motor 1972

You have a 1972 tall deck 427? The tall deck 427 was used at least into the '90s in school buses and similar trucks. I can't believe that the only available plugs are disco'd?

NAPA online says a '72 B50 School Bus with 427 uses an Autolite ASP144 plug. A cross reference says it fits '71-91.
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Old 11-19-2015, 04:41 PM   #4
coachman
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Re: 427 tall deck motor 1972

Thanks Mark i will check them out too !
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