12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

12 Valve to 24 Valve Swap

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  #21  
Old 03-08-2011, 08:08 PM
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id buy the 24 valve without the pump, turbo, or frontcover actually id like just the head lmk if u wanna sell the head u could actually make money off the engine if u parted it out
 
  #22  
Old 03-08-2011, 08:31 PM
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Originally Posted by justin c
id buy the 24 valve without the pump, turbo, or frontcover actually id like just the head lmk if u wanna sell the head u could actually make money off the engine if u parted it out
you cant just put a 24 vavle head on a 12 valve, the pistons are different in case you didnt know
 
  #23  
Old 03-10-2011, 07:24 PM
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Originally Posted by turbostang7
you cant just put a 24 vavle head on a 12 valve, the pistons are different in case you didnt know
yes i do know
 
  #24  
Old 03-10-2011, 07:31 PM
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k most people think its just a throw on piece so i figured before someone goes through all the trouble to get that far might as well burst the bubble early on ya know
 
  #25  
Old 03-10-2011, 08:01 PM
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24v heads interchange? so you could build a 12v bottom end with the pump and everything with a set of 24v pistons and the head bolts right on? not that id ever do the swap, id rather just swap a dana 60 under a duramax if i had money, but im interested in knowing now
 
  #26  
Old 03-10-2011, 10:10 PM
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Originally Posted by Chevy355mark
24v heads interchange? so you could build a 12v bottom end with the pump and everything with a set of 24v pistons and the head bolts right on? not that id ever do the swap, id rather just swap a dana 60 under a duramax if i had money, but im interested in knowing now
the common rail heads will bolt on to the older blocks with a little modifications to the water jackets. and yeah you can build a 12 valve bottom end and block but put 24 valve pistons in it because the bowls are different. but if you are going that rout its just as easy to get a 24 valve and put your p-pump on it anyways
 
  #27  
Old 03-11-2011, 11:05 AM
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Originally Posted by Chevy355mark
24v heads interchange? so you could build a 12v bottom end with the pump and everything with a set of 24v pistons and the head bolts right on? not that id ever do the swap, id rather just swap a dana 60 under a duramax if i had money, but im interested in knowing now
Now ? why the **** would you want to do that ??

14bolt 11,5" are about 10x better after installing something better than the grenade locker...

i'd say they compare to Dana 80s !

I love my 80.... i've fried numerous 60 ! and no 14bolts... my G80 held up fine on my 6.0 gasser 4ex !
 
  #28  
Old 03-13-2011, 03:44 PM
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im talking about swapping a dana 60 under the front, although i have snapped an axle shaft on mine theres really nothing bigger or better for a front diff. will NEVER have another 4x4 truck with ifs. reason i picked cummins is because its cheaper then duramamx, they can be found with a manual trans and they have a solid axle. the ultimate truck would be a d-max with a zf6 and a ford kingpin dana 60 front with a real 4 link setup... the day i have the money to do that will be the day i swap a 80s chevy cab and bed onto my current dodges frame, that would be a cool truck.
 

Last edited by Chevy355mark; 03-13-2011 at 03:46 PM.
  #29  
Old 03-14-2011, 02:34 AM
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Ok just to save you time and money plump th 24v you'll love it and no you Don have to change pistons only timing cases and lines also if government got the engine why build a 12v put the money in the motor you got like put a common rail head on it a good Turbo a good ppump good 2v injectors and so on and you'll have more power then you need
 
  #30  
Old 03-17-2011, 08:25 PM
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U do not gain much power by using a p pump with a 24v head bang for your buck u can make alot more hp with less money unless u are over 800 hp put the money else were i just put my truck on the rollers yesterday and made 896rwhp and ran it last year with basicaly the same aet up but a 12v head and made 852 rwhp so what im saying is u can make 44hp alot of other much cheaper ways and the 24v head has a ton of port work done Also an the ols head had very little port work
 


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