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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

delievery valves

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  #11  
Old 03-12-2010, 05:43 PM
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what do you use with 181s if you dont use copper washers? orings?
 
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  #12  
Old 03-13-2010, 05:30 PM
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Originally Posted by bowtech
bc im throwing in some 181s in my 94 upgrade from the 131
Use your 181 seats with the 131 valves, they will flow a lil more then the 181's alone

Originally Posted by Red_Rattler
Just so you know 500-550cc's is enough fuel to support 600hp.
That and alot more.

Originally Posted by 95cumminsguy
Also you can take the life expectancy of you engine a chop it in half, I dont care what anybody says nothing is reliable above 500 HP thats 3 times the factory HP on a 12 valve
Depends on your setup and how you drive the truck.

Originally Posted by wes-cummins
what do you use with 181s if you dont use copper washers? orings?
nothing
 
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  #13  
Old 03-13-2010, 06:21 PM
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how much more would it flow if i used the 131 seats with the 181s? how does that work
 
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  #14  
Old 03-14-2010, 11:33 AM
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you want the 181 seats and the 131 valves. They will flow a lil more but not to much.
 
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  #15  
Old 03-14-2010, 11:42 AM
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whys that?
 
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  #16  
Old 03-14-2010, 09:20 PM
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131 valves have less shoulder then the 181 valves, so they will flow just a tad more in the 181 seats.
 
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