so I"m finally freed up enough to get to my Cummins swap, into my 87 Chevy K30, and I need to know:

Is there any reason I CAN"T use the stock tanks, assuming I drain them properly??? what to do about the in-tank pumps since the Cummins has the mech. pump? gut them???

anyway I'm excited ******, I"ve been waiting nearly 2mos to get into this, and I'll post pics somewhere.

thanks in advance for the help I'm gonna need! LOL


edit by admin

 

I can't think of any reason why you couldn't use a Chevy gas tank.

Since we have the mechanical lift pump on the side of the block anyways, I don't think that an in-tank lift pump would be anything but a liability. So I'd take those out or just bypass them.

 

sweet, that's about what I figured.

 

Does that particular truck have a narrow filler neck so as not to be able to get a diesel pump nozzle into it? Just a thought? Might have to change that.

 

eh! Good thinking! I hadn't thought about that. Good idea!

 

How exactly do you change that? My second filler door has that problem...

 

hammer and a chisel!they actually come out pretty easy.

 

on Chevy's you can unbolt the filler neck from the body, and undo the hose. I will probably just bend up a new sheetmetal funnel and ghettofab it on, rather than making some kind of step down hose adapter to the tank.

 

Or you could just find a truck of the same year that had a diesel engine and rob the filler neck, should bolt up to the tank.

 

Just be sure the gas tank is galvanized metal. Diesel will leach out ? (not sure what compound) and is hard on the fuel system. I heard of this problem with galvanized funnels and farm tractors.