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5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

4k gov springs

   
Old Apr 29, 2012 | 02:16 PM
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Default 4k gov springs
would it be ok to put 4k gov springs in my 94 12v cummins with a 0 fuel plate,4'' exhaust,bhaf and star wheel turned thanks
 
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Old Apr 29, 2012 | 03:12 PM
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I would add at least 60# valve springs.
 
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Old Apr 29, 2012 | 03:38 PM
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I getting ready to install mine tonight. 100 plate, 3" exhaust
 
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Old Apr 29, 2012 | 03:42 PM
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just 60# valve springs? and how much of a difference will i tell?
 
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Old Apr 29, 2012 | 03:49 PM
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night and day. best mod you can do but install 60lbs springs if you use 4ks
 
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Old Apr 29, 2012 | 07:59 PM
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how reliable will it be for every day driver as far as bottom end and cam and all of that wil it hurt anything?
 
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Old Apr 29, 2012 | 08:37 PM
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4Ks are fine for a DD. The biggest risk is floating an exhaust valve if you stick with stock valve springs.
 
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Old Apr 29, 2012 | 09:12 PM
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anyone had any problems with valve beat in? and how long does it take install these?
 
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Old Apr 29, 2012 | 09:16 PM
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whats valve beat in?? 30 min for the 4ks and a hour or so with the valve springs, the back 4 are a bear.
 
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Old Apr 30, 2012 | 04:59 PM
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Do I need the titanium keepers and retainers? If so does anyone know where to get them cheap?
 
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