I think the hole in the block might affect the reliability

 

I hope you are considering assembling some kits, because that might be my next expensive move...

 

thats 50% of the reason for this post

 

Hmmmmm, . We can throw that in my twins kit

 

You could call Nick since he's done it before and is doing it right now. Shouldn't you already know this anyway?

 

I have never done a p-pump swap but I know the 94-98 and the 89-93 like the *** on the back of my head so I know whats different and all but I have my list I just making sure and thats a good idea Chris I need to call and order some stuff from him anyway

 

Something that hasn't been mentioned is that the 1st gen 12v has different piston bowls and a different nozzle on the injectors (different spray pattern). Not sure what I'm going to do about that, it was a nasty little surprise.

The first gen injectors will not attach to the 2nd gen fuel lines(different thread), also the non. I/C trucks have 9mm injector nozzles vs. 7mm from '91.5 on.

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I looked at the injectors and noticed that the injectors installed in the '93 ve pumped engine have much thicker copper washers than the injectors in the '96 ppumped engine. So that means the ppumped engine had the injectors protruding farther into the combustion chamber.

I checked out cummins quickserve(my brother works for cummins) and according to the online manual all 7mm injectors have the same nozzles. I think this means the reason that the pistons are different is because of the different injector protrusion. I'm not sure about the higher fuel pressure from the ppump, not sure how much that would affect the spray pattern.

What injectors do you guys use in your ppump swaps? and how thick are the copper washers you put in?

 

i used the p pump injectors i got from sdx as well as the p pump fuel lines with the copper washers from sdx that they supplied as well. i dont remember how thick they were to be exact though.

as far as the complexity of the swap, mine was done in a day (with the exception of having to wait a few days for the injectors to come in). it was a great upgrade, the truck is 10 times more drivable now it is just much more street friendly

 

Do you remember if the washers are about 1/8" thick or less than 1/16"? Did SDX build the injectors specifically for a ppump swaped engine or are they just off the shelf ppump injectors?

Thanks

 

Here is a problem I ran into on my swap:



I had to grind out a piece of the head to clear, simple fix but maybe it will save someone some time

The engine runs great, I'm using the factory ppump injectors with the thicker copper injector washers that came in the gasket set from cummins