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Old 12-06-2021, 09:18 PM   #2
diesel burner
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Join Date: Nov 2017
Location: Enterprise Oregon
Posts: 59
Re: My 71 K20 Cummins swap

I knew when I bought this K20 that I wanted to do a Cummins swap and started reading up on what it would take. There were quite a few threads on here that inspired me and I read every word of them and studied the pictures religiously. I started looking for a donor vehicle and then life happened and I was set back a few years on finding a Cummins. In the mean time the 350 started burning oil badly so I pulled it and the transmission/transfer case out and put in a 383/nv4500/np241 setup. I also pulled off the service box and built a flatbed for it. I could have found a bed for it but a flatbed fits my needs better and I don't have to worry about the paint matching.
During this time frame I also managed to find a Dodge Dana 60 from a first gen. I built a new front crossmember with spring hangers and core support mounts out of 5/16 T1 steel, I did this to compensate for the wider spring perches on the dodge dana 60
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71 C10 Cheyenne 396, turbo 400
71 C20 Custom Camper 383,tko 600,14 bolt project
71 K20 Custom,Cummins,NV4500,NP205,dana 60F,dana 80R
06 GMC sierra 2500 extended cab duramax,allison
05 Toyota Corolla (commuter)
18 Chevy Tahoe RST (wifes car)
08 HD Roadglide
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