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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

valve springs

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Old 07-16-2012, 11:16 AM
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Default valve springs
I ordered some valve springs for my 94 12 valve and they are 60# like I ordered, but now I'm told I need 60# over stock for my 4k gsk. Is this true, how many # are factory springs?
 
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Old 07-16-2012, 12:33 PM
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60# are what you need
 
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Old 07-16-2012, 02:32 PM
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Ok thanks, just got confused I guess. Had some people say 60# and some say 60 over stock.
 
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Old 07-16-2012, 02:39 PM
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60 lb springs is good.
 
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Old 08-02-2012, 02:06 PM
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Om i was reading my cummins service manual and it said that the springs should be between 80 and 89 lbf , does this mean that the 60# are weaker?
 
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Old 08-02-2012, 04:22 PM
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if they are 60# that means they are 60 over stock
 
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Old 08-02-2012, 06:13 PM
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Ok thanks Guy's just want to make sure. Dont want to get the engine in and have to take it back out.
 
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