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Username Post: Couple Questions From A Newbie - 1980 C10        (Topic#356906)
Reuland80C10 
Poster
Posts: 5
Reuland80C10
Age: 20
Loc: WA
Reg: 06-18-19
06-20-19 11:53 PM - Post#2768919    

OK so I'm still fairly new to the whole mechanics thing, trying to figure things out as a I go here, but am a quick study. Late October of last year was gifted a 1980 Chevy C10 with a 250(4.1) straight 6 block, with the "California crap"



Edited by Reuland80C10 on 06-21-19 12:06 AM. Reason for edit: No reason given.

 
Liberty Valance 
Contributor
Posts: 120
Liberty Valance
Loc: Euless,Texas
Reg: 07-21-14
06-21-19 04:18 AM - Post#2768922    
    In response to Reuland80C10

Welcome to the site.

1974 Cheyenne 10 LWB 350/TH350/AC/4 BBL Quadrajet
Mopar by Birth
Chevy by Choice


 
gchemist 
Member #271 Senior Chevytalk Moderator
Posts: 25241
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
06-23-19 06:51 AM - Post#2769045    
    In response to Liberty Valance

Welcome to the site. I guess you have ruled out overdrive. The TH350C started in '79. The electronic lock up increased fuel efficiency by 10%. You can ID one by an electrical plug on the left side. A standard TH350 will not have an electric plus. (Read about it here: http://www.novak-adapt.com/knowledge/transmissio ns... You can add a plug though. It used a vacuum operated switch to lock the converter at highway speeds. A stall converter can do the same job. My suggestion is to do an engine and trans swap at the same time. If you remove the radiator support, you can install an engine/trans combo all in one time. I did it to mine. I recommend a combo install so you can match a converter stall speed to engine power. I removed the 700R4 electrical lock up on my truck. I run a 2500 stall converter to match a 355 HP/405 ft/lb torque motor. The converter locks up in overdrive. Running in 3rd or standard drive, it locks up too. It's like having a middle gear between D and OD.


As for the shifter, it can work. Checkout this custom center console for a shifter.
http://www.73-87.com/7387garage/interior/c onsole.h...

LS 4.8, 5.3, and 6.0 engines can run on carbs too. They bolt right up a TH350 too. If I did my truck all over again. I would do a 6.0 carb swap.


'83 Silverardo XST - ZZ4 powered
'95 Jimmy SLT (Bought @131,814)
'96 GMC Jimmy LS Ret. @236651 miles
'08 GMC Acadia 3.6L SLE


Edited by gchemist on 06-23-19 06:53 AM. Reason for edit: No reason given.

 
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