Well my injection pump went out a couple days ago and now I am looking for a new one. I have read that the SO pumps may be better than the HO? IF so are they interchangable? Do they last as long as the HO or even longer? JUst trying to figure out what to do?

 

i have heard of others replacing their HO pump with an SO without problems so it seems they are interchangeable. the SO is considered better only because they have the ability to pump more fuel volume than an HO giving it the ability to achieve higher horsepower. otherwise, longevity is about hand-in-hand.

 

So i should probably get a SO pump then since my goals are about 600 hp when im done. Does anybody know the difference like how much hp the SO can handle and how much the HO can handle?

 

Ho pump (on an HO engine) has trouble getting much over 500 HP.
SO pump on an HO engine will go to 600+ HP.

RJ

 

here's a link about the same thing... https://www.dieseltruckresource.com/....php?p=1372057

 

So is there any downfall to switching to a SO pump from my HO? Like something else going wrong?

 

I think the main problem will be that you will want more and more power, and will trade your truck for a 12er.
-P

 

Lol actually i might be gettin a 12v really cheap here pretty soon its gotta quite a few miles and the tranny isnt in good shape but other than that its not to bad a older man had it and hasnt ragged it at all and for $1000 i can fix it up and play lol.

 

Poll added just to see what everyone thought.