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Old 01-27-2019, 01:37 PM   #133
Vintage Windmills
Vintage 4x4s
 
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Join Date: Sep 2010
Location: Prior Lake, MN
Posts: 4,305
Re: K30 Downgrade to Cummins Project

I decided to roll the dice and try the all aluminum 2.44 thick 4 core off ebay. Its being shipped and now I'm working on figuring out the trans crossmember. Think I'll just build it from scratch or modify the chevy one.

on this cold day I'm putting a list together of things I need to research and figure out.

- Tach- Whats the best way to get a tach on this thing?
- AC compressor mount- needs to be up higher. I could try to locate a medium duty truck water outlet/mount bracket but it may be $400? Otherwise I could maybe buy this
setup but I'm concerned they say the lower water neck needs to point down at 45 degrees. I don't want to do that since that will send it right towards the frame rail.
https://www.dieselconversion.com/hig...l#!prettyPhoto

-Cruise control - whats a good non vacuum option?
-Dmax rear axle springs are so long, I'd have to move the stock saddle fuel tanks. The springs in the truck are 10 leaf and look like they'll be pretty stiff. Perhaps if/when I swap
to the AAM 11.5 I will just get a set of stock K20 rear springs. I have the air lift airbags in the rear for capacity when hauling heavy.
-Fuel system - need to figure out if I should replace/upgrade the tanks or just flush them out. I'd like to run the dual tank setup. Trying to remember if the lift pump on the
engine is enough to draw the fuel or if i need a pump closer to the tank. Can't remember what the dodge gen 1's did. I think they just used the lift pump.
__________________

67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades)
67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore )
86 CHV K30 502 th400, apple red NEW
71 CHV K20 350 SM465, ochre (saved work truck)
71 CHV K20 292 SM465, white, tach, PTO, (future project)
72 CHV K20 350 350th, medium blue (project stocker)
01 CHV K2500hd crew, indigo blue

^3 dont run and the others don't see winter either
'86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649
'71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642
'72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

Last edited by Vintage Windmills; 01-27-2019 at 02:03 PM.
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