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#1 |
Registered User
Join Date: Apr 2003
Location: Central PA....In the Berg of Nisbet
Posts: 790
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A couple Cummins pictures for those interested
Since I am crawling along on dial up, I had to load them small or I'd be waiting all night
![]() Truck is a '71 C-20........Was a 350/3spd...........I got upset with the lack of low end with the V-8, so I looked at the diesel option. Not a fan of GM's diesels. I really wanted a 6BT Cummins(5.9 to most people), but it was too heavy IMO, for a 4x2 chassis without major changes that I didn't want to undertake. I didn't want a 4BT(3.9) because they are rattlely and noise(I ran alot of them in backhoes), they are a good engine, I just wanted something a bit smoother. So I found a small 6 cylinder @3.4 liters........Designed as a gen-set engine it runs as smooth as silk. I got a GM adapter, ran a 4spd+ a homemade OD unit based off a 3spd Sag.........This is a project in progress, because I patched it together enough to run it so I could focus on completing my K-20 which is now done. Anyhow, we've been running it for two years, not using it much in the winter, but its run everyday in the summer time. When I tear it down for paint/mod's this spring, everything from the clutch back will be replaced with heavier parts. Even with only a realtively small engine under the hood, the monster torque on the low end tears up anything and everything. I am going to use a HD ZF-6spd with an oil cooler, plus heavy joints/shaft and carrier. Other than that, it is an amazing drive, and this engine has a sound like no other engine I've heard in a pickup...........Sounds like an IH DT idling, and barking through a straight pipe, it almost feel like you have a Big Cam Cummins under the hood on a hill. I love it. I had a few request for pictures, so if anyone needs to know anything ask, I'll try to help. I didn't find anyone who did this previous to me doing it, so I learned some things the hard way. But I have since been contacted by others who have did swaps into these with Cummins and other engines, so know about most of the don'ts ![]() ![]()
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'72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!! |
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#2 |
In Memoriam...
Join Date: Nov 2006
Location: Wallburg, NC
Posts: 1,216
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Re: Acouple Cummins pictures for those interested
Now that is taking the road less traveled.
Congratulations on your project. I bet you feel a lot of pride when someone asks you what you got in there. Way to go !!! ![]() ![]() ![]()
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'68 C10 SWB 307ci 2BBL FarmTruk Pics Here "You know, doing what is right is easy. The problem is knowing what is right." |
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#3 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Acouple Cummins pictures for those interested
It`s about time you showed us that motor.I`d love to check that out up close and personal.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#4 |
Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,450
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Re: Acouple Cummins pictures for those interested
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"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. ![]() We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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#5 | |
Registered User
Join Date: Apr 2003
Location: Central PA....In the Berg of Nisbet
Posts: 790
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Re: Acouple Cummins pictures for those interested
Quote:
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'72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!! |
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#6 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Acouple Cummins pictures for those interested
I`m a reincarnated member here.I feel like Rumpelstiltskin.Did I ever show this Detroit on a`69 GMC?If you can get to Frederick,MD in May for the annual ATHS show he`ll be there.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#7 |
Registered User
Join Date: Apr 2003
Location: Central PA....In the Berg of Nisbet
Posts: 790
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Re: Acouple Cummins pictures for those interested
Yeah, you showed me before..............That is the same treatment my next one will get
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'72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!! |
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#8 |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Acouple Cummins pictures for those interested
It’s certainly not for everyone, but I like it!
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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#9 |
Tool Addiction=Money Shortage
Join Date: Mar 2006
Location: Grand Forks, ND
Posts: 233
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Re: Acouple Cummins pictures for those interested
I would be interested in some info on your overdrive conversion. I currently have 4.56 gears, and I hate going 60mph @ 3,000rpm. Thanks in advance.
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#10 |
A-Adam A-Adam
Join Date: Apr 2003
Location: Sarpy Co. Ne. South of Omaha
Posts: 263
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Re: Acouple Cummins pictures for those interested
I was thinking about doing the same kind of conversion.
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70 3/4 ton GMC Camper Special |
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#11 |
Registered User
![]() Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Re: A couple Cummins pictures for those interested
i,d love to hear about the o.d trans also. did you turn the 3 speed backwards ?????
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#12 |
Recovering 67-72 Addict
![]() Join Date: Oct 2000
Location: North Bend, WA
Posts: 1,788
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Re: A couple Cummins pictures for those interested
That's great! After owning a Duramax, I am a diesel convert. When my 427 gets tired I am hoping to find a donor to transplant a Duramax into my '68.
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68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women" |
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#13 | |
Registered User
Join Date: Apr 2003
Location: Central PA....In the Berg of Nisbet
Posts: 790
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Re: A couple Cummins pictures for those interested
Quote:
![]() My brother usually splits each gear, we all like it, because it is something different, but I am going to remove it for better reliablity/ease of driveablity for everyone else who wasn't a pro gear jammer in a OTR semi ![]() Other than my time, I only had $20 in it for a 3spd shifter. And I got 2+ years use out of it, while saving a ton of fuel ![]()
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'72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!! |
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#14 |
Registered User
Join Date: Dec 2004
Location: Northern AZ
Posts: 7,271
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Re: A couple Cummins pictures for those interested
I have been planning a 4X4 Suburban project with a new 5.3 or 6.0 gas engine, but I have since purchased a new Dodge, so now I am going down the road of, well if I find an old doge cheap (100-200,000 miles) I can do a cummins powered 67-8 Suburban 4X4 and have a neat fuel economic Burb! I want to use all the dodge stuff, front and rear axle, hopefully a six speed etc! Looks sweet, yours is the one that showed me it could be done!
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