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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 86Chevy3 on September 04, 2015, 01:22:41 PM
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In the process of rebuilding my 86, almost done with the chassis now and starting to think about what I want to do for the drive train. I previously had a 383 and turbo 350 and a 3.73 gear with a locker. I was originally dead set on an ls swap in the beginning but have been going back and forth on it since I still have the 383 I'm thinking about just going back with that and throwing some nitrous at it and put an overdrive tranny behind it. I have a 6.2 ls short block in my garage but I think it would nickel and dime me to death to get it all put together by the time I buy all the sensors and everything. So if I was going to do an ls swap I would prob just get a junkyard 5.3 or 6.0. What do you guys think? Opinions?
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To help, list the pro's and con's of each and what is the outcome. You haven't mentioned your intended use and budget which always come into play, at least with me. For me I am a stickler for details, my wife says I have OCD... What is important, laying down rubber or racing? MPG and being able to take it on a long haul without stopping every 100 miles or so for fuel, or gallons per smile flat out toy?
Maybe this response helped, maybe not. My interest is nostalgia and it is only stock once, but do love all what I see except when you chop the frame up to make one drag the bumper and then it is useless to use it as a truck.
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We have the same dilemma
We have a 77 -ish K-10 with a worn out 350 & TBI and a 5 speed 3.73 gears and 35" tires that's my sons daily driver
Gonna have to replace the engine and can't decide whether to go back with a normal 350 or a vortec or a LS
The LS 5.3 will be nice. But will nickle and dime us on the install
But we don't want to go back with a regular 350 since this one has wiped cam lobes and I figure that's gonna happen again unless we use a roller cam engine
Good part is we don't have to pass any emission test and the truck was a stolen recovered with a state issued VIN
So no worries of hurting the value since all the numbers are ground off of the engine Trans frame and body
Makes buying parts a pain though since we have no idea what year it really is
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We have the same dilemma
We have a 77 -ish K-10 with a worn out 350 & TBI and a 5 speed 3.73 gears and 35" tires that's my sons daily driver
Gonna have to replace the engine and can't decide whether to go back with a normal 350 or a vortec or a LS
The LS 5.3 will be nice. But will nickle and dime us on the install
But we don't want to go back with a regular 350 since this one has wiped cam lobes and I figure that's gonna happen again unless we use a roller cam engine
Good part is we don't have to pass any emission test and the truck was a stolen recovered with a state issued VIN
So no worries of hurting the value since all the numbers are ground off of the engine Trans frame and body
Makes buying parts a pain though since we have no idea what year it really is
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I had the same problem finding parts for mine when I got it. Through trial and error I found out it was an 82 body on a 78 frame. Made a whole lot of wasted trips to the parts store.
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We think the cab is a 77-78 because it has the separate rollers for the seat belts
The doors are 73 and we know that since 73 only doors had tiny rollers on the window tracks
Had a Dana 44 which they supposedly stopped using in 76-77 ?
Radiator support has vacuum hose routing sticker for 1980
Has GMC fender badges ,
Chevrolet tailgate
No numbers on anything
Not not the frame.
Not on the engine
Not on the Trans
Not on the axles
It's all wiped clean
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roundhouse, is the VIN not in the door? That should tell you what year cab it is...
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roundhouse, is the VIN not in the door? That should tell you what year cab it is...
state issued VIN riveted in the doorframe
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Ah...