1970 Challenger 440 4B engine idle

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Jul 4, 2006 | 08:39 PM

MikeR

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1970 Challenger 440 4B engine idle

I just bought a 1970 Dodge Challenger with a 440 magnum 4 BBL and don't have a service manaul yet. Does anyone know the correct engine idle when warmed up and in drive?

Jul 20, 2006 | 05:42 AM

hemihead1

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RE: 1970 Challenger 440 4B engine idle

engine idle speed when warmed up is 750rpm. Cold idle is 1250.

Jan 12, 2007 | 05:45 AM

unclemike

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RE: 1970 Challenger 440 4B engine idle

Provided the throttle shaft bores aren't worn out on the carb body.

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