Anyone done a duramax conversion

Lonnie

Horsepower Addict
I think they are 1/2 supply & 3/8" return.

You will have to do some work to make the dual tanks functional. Check out the fuel tank switches used in marine applications. They are made for high flow & also switch the return line as well.
 

GTA23109a

<-- Prius owners love me
May 9, 2007
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Bakersfield, CA
IMCO Marine makes a heavy duty, Coast Guard approved (i.e. safe), 1/2" in/out, 6-port fuel switch. I've had one on my truck for well over a year and it works great. I run a toolbox.tank combo as well as my factory tank.
 

duramax3388

Member
May 22, 2008
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16
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Zanesville Ohio
if the truck is just going to be run as a puller is there really a need to keep the stock tanks i would just use a fuel cell in the bed it would be a big savings in weight and a heck of alot easer to make work just food for thought
 

85chevyk30

New member
Feb 3, 2009
11
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0
thanks that is true. i cant belive i didn't think of that lol. but i still want to drive it in the summer alot so i might just spend the money and keep the headache with trying to do the dual tanks. i would hate to speed 10 grand on paint and body work just to have empty fuel doors, becuase i would have shaved them.