Should the high pressure pump be the better one to get or just get the low pressure pump. Im looking at getting big injectors and a new turbo? Not sure on injectors yet.

no the HP pump puts out WAY more than our pumps can handle "they" say that the VE can only handle about 15PSI I am running 22PSI on the one I am working on and it takes every bit of it lol

Takes it for now, your seal if not retained is hating life though.

Thanks yall for this very helpful thread!!:tu:

I just bought the low pressure piston pump and parts.

There is some updated part numbers for the list of parts you need for the conversion.
Low pressure piston lift pump - 4988751 (1)
Fuel line - 3914753 (1) same as before
Gaskets - 3939258 (2)
Spacer - 3914284 (1) same as before
Seals - 3963983 (2)

where did you buy the parts from?

from Cummins

One of the vendors sells a kit that includes everything to do this swap for quite a good price. I just can't remember who that was. Anyone else seen it?

Ofi has em cheap...

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to clear this up, is the lift pump in this sticky the same as the second gen, but with the low press spring? And if i get the second gen pump, i need a regulator? But in doing so i can easily up my press after mods or say... a p pump? :tu: