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03-20-2018, 08:51 PM | #1 |
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Join Date: Mar 2008
Location: Burke, VA
Posts: 114
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Donor vehicle questions
So I've been casually looking for a 5.3/4L60e drivetrain for my 65 C10 while chipping away at smaller projects. Despite their ubiquity, they don't show up as parts on craigslist very often and those that do often seem sketchy in that they are not complete with all the accessories and have unknown pedigrees and mileage.
EBay and other drop out packages from retailers seem pretty darn expensive and shipping will be an expensive adventure. Easy $2500-$3k for a garden variety LM7/4L60e. So I've been considering buying a whole donor truck or van locally and have questions. Cost and completeness are big considerations. 1. I think I want a LM7 5.3 for a solid upgrade without the extra cost of the 6.0. But the 4.8 hp/tq numbers are not too different from the 5.3 and it could open the trade space and save money. Is there a noticeable difference for a dead stock swap into my shortbed C10? 2. I don't think I want a 4L80e because I'll have to swap to a high hump. Should I worry about this too much? The van options are 2wd while most trucks are 4wd, but many of the vans are heavy duty with 4L80s. 3. I think there are differences in the van accessory mounting (than a truck) but I'm not sure what they are and if they are a factor. Is a van a good donor? 4. Model years: I think I am looking for a 2000-2005 ish truck donor or a 2003-2007 van. Presumably newer means lower miles but the newer models have more sensors and electronics to disable. 5. Mileage. Something between 150-200k is probably realistic. Should I assume that I have to rebuild the 4L60e for this type of mileage? That factors in the economics. 6. Extra stuff: Obviously with a full donor vehicle I'll get all the ECM, harness, pedal and accessories. Can anything else be used like the radiator and/or fans, wiring/connectors, driveshaft, etc? 7. I might be able to get some salvage value out of the rest of the donor once I've picked it over. Some vans come with ladder racks and interior storage that is valuable. I'm looking for a donor vehicle in the $2500-$3k range. Is it worth it? Or should I just suck it up and order a complete package from a parts retailer? If anyone has any suggestions for sources in Northern Virginia/Maryland, I'm all ears. Thanks for your feedback. |
04-14-2018, 08:15 PM | #2 |
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Join Date: Dec 2017
Location: Mile High
Posts: 160
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Re: Donor vehicle questions
I did the complete donor vehicle route since it's my first one. I wanted to be able to drive it around and make sure everything was good. I don't regret it. But, I could have saved a few dollars.
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04-14-2018, 08:35 PM | #3 |
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Join Date: Jan 2013
Location: Imperial, MO
Posts: 1,003
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Re: Donor vehicle questions
Did the complete donor route as well. We purchased a '02 Suburban with a L59 5.3L/4L60E combo. After driving it for a year, we pulled the engine, trans, PCM, TAC module, pedal, and engine/PCM harness and sold the rolling chassis for ~$1k less than we paid for it. Not a bad deal.
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04-15-2018, 09:46 PM | #4 |
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Join Date: Mar 2008
Location: Burke, VA
Posts: 114
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Re: Donor vehicle questions
Thanks.
Did either of you guys try to use the radiator/fans from the donor vehicle? That seems like that would be a big plus if it worked. Don't hear anyone talking about it so I would guess there is some issue that prevents it. |
04-15-2018, 09:53 PM | #5 |
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Join Date: Jan 2013
Location: Imperial, MO
Posts: 1,003
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Re: Donor vehicle questions
No. We wanted a cleaner look and an electric fan.
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04-16-2018, 04:18 AM | #6 |
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Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
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Re: Donor vehicle questions
I used the donor engines fan, fit the '71 shroud perfectly. I did make my own mounts though.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
04-16-2018, 09:42 AM | #7 |
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Join Date: Mar 2016
Location: Long Island NY
Posts: 598
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Re: Donor vehicle questions
Heres what I do know about van accessory differences. The power steering fluid reservoir will be a remote mount and not on top of the pump. The oil and trans dipsticks are extended towards the front of the engine since in a van only the front of the engine is accessible from the hood. I haven’t noticed any other front accessory differences while browsing take out engines on eBay.
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04-23-2018, 03:46 PM | #8 |
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Join Date: May 2014
Location: San Diego, CA
Posts: 547
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Re: Donor vehicle questions
Racecougar,
I like the remote coil packs. Nice touch!
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Project Engine Stand 1972 SWB conversion: http://67-72chevytrucks.com/vboard/s...d.php?t=673914 1970 Nova: http://67-72chevytrucks.com/vboard/s...d.php?t=708161 |
04-23-2018, 05:56 PM | #9 |
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Join Date: Jan 2013
Location: Imperial, MO
Posts: 1,003
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Re: Donor vehicle questions
Thanks. It will eventually get a nice set of valvecovers, like these: https://paceperformance.com/i-937549...ed-emblem.html
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