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#1 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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1980 gmc original vs modified HELP!!!
i have a 1980 gmc sierra classic i purchased from the original owner, the truck only has 35,000 original kms (im canadian no clue what that is in miles lol)
the question is i have a small block that i built and spent way too much money on for my 67 chev, i have decided to go with an ls in my 67 and would like to put the small block in my 80 gmc but at the same time i kinda want to keep it original so im torn between the two any ideas or opinions??? truck is 1980 GMC sierra classic heavy half 350 4 barrel th400 12 bolt differetial 2 tone cream and white brown interior with tilt and cruise no a/c or power windows/locks |
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#2 |
The One And Only !!!
Join Date: Jan 2007
Location: Hole in the woods Florida
Posts: 4,567
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Re: 1980 gmc original vs modified HELP!!!
It depends.....
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93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! ![]() The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. "Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!
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#3 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: 1980 gmc original vs modified HELP!!!
some how i get the feeling you want to see pictures of the truck haha
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#4 |
Registered User
Join Date: Jun 2011
Location: Baytown TX
Posts: 2,219
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Re: 1980 gmc original vs modified HELP!!!
1 kilometre is .62 or 62% of one mile.
Need more details on the 80 GMC. Posted via Mobile Device
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John 82 Chevy Silverado 350ci/TH350 ![]() |
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#5 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: 1980 gmc original vs modified HELP!!!
here are a couple pics of the truck, they might not be the greatest its a lil dirty and the sun was giving off a glare, lt me know what you think or anymore info you'd like?
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#6 |
Registered User
Join Date: Jan 2011
Location: Tulsa,Okla
Posts: 590
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Re: 1980 gmc original vs modified HELP!!!
35,000 km = 21,747 miles. If it were mine and I had that Heavy Half with only 21,000 miles, I would ditch the running and mudflaps and polish, detail it up and drive it. Hate to see something that original and that low of mileage changed, but hey it's your truck! What's up with the seat? It looks really tall. Nice truck!!
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"Whoever said money can't buy happiness has obviously never seen a speed shop! |
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#7 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: 1980 gmc original vs modified HELP!!!
thanks, with the seat well haha thats where the happy low mileage 2nd owner story ends, the truck was in a flood so the interior was toast, i had to clean everything ut really good
motor, trans, rearend etc i hd to completely gut the interior, put new carpet and insulatio in, new door panels, dash etc have a new headliner coming from lmc, so the seat is jut sitting in there thats why its so high i dont think i wuld ever buy something like that agin its been alot of work, but i saved her, i culdnt just leave her when i seen her tucked away n the garage looking sad, plus the price rght lol |
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#8 |
The One And Only !!!
Join Date: Jan 2007
Location: Hole in the woods Florida
Posts: 4,567
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Re: 1980 gmc original vs modified HELP!!!
I'd leave the truck as is except ^^^^^^^........ Put the other engine in that Fairlane and make it run like it aught too ! ![]()
__________________
93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! ![]() The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. "Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!
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#9 |
Registered User
![]() Join Date: May 2009
Location: Kansas
Posts: 357
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Re: 1980 gmc original vs modified HELP!!!
You snagged a nice GMC! *That would be a tough decision with so low of miles. *If you plan on keeping it do with it what you want and have fun with it. *I will say this, I bumped the HP up on mine, it burns a lot more fuel but it made an old pickup fun to drive! *
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#10 |
Registered User
Join Date: Jun 2011
Location: Baytown TX
Posts: 2,219
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Re: 1980 gmc original vs modified HELP!!!
If the motor is OK I would run it keeping the 80 stock and sell the other "hot" motor to finance the ls for your 67.
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John 82 Chevy Silverado 350ci/TH350 ![]() |
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#11 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: 1980 gmc original vs modified HELP!!!
the original 350 runs awesome purs like a kitten, i had thought about selling my motor to finance the ls motor but i have alot tied up in the small block im not sure id get my money back
heres some pics of the motor for you and for others for future reference of what my options are |
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#12 |
Registered User
Join Date: Apr 2009
Location: Waynesfield Ohio
Posts: 1,991
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Re: 1980 gmc original vs modified HELP!!!
Swap the motor and if you decide to sell it put it back in or tell the buyer you have the original low mile motor for it.
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![]() 1949 Five Window, 1973 Step Side, 2000 Z71 |
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#13 | |
GoatLube Experss
![]() Join Date: Oct 2009
Location: clarksville, Tn.
Posts: 1,337
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Re: 1980 gmc original vs modified HELP!!!
Quote:
what you have to decide is will be happy drive'n an all stock/original truck or will be lose'n sleep thing'n the truck with the hot motor in it. you could sell me the hot motor for $500 then you wont have to worry about it no more,,,,,,,,,,,,,,,, just a thought,,,,, to help out a freind,,,,,, ya know what I mean !
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Goat Lube Express, locations in Qalat,Afghanistan & Clarksville, Tn. '87 R30 dually 454/TH400 '85 1/2 ton CCSB '92 S10 350/350 '84 MonteCarlo 383/PG/9"ford '78 Malibu wagon 350/350 '78 Cutlass (project family car) '96 S10 Jimmy (Moma's) |
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#14 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: 1980 gmc original vs modified HELP!!!
haha restorob i dont think i could waste a small block like that lol
and if i do swap motors i would definatly keep the original, possibly even swap clusters so i dont rack up mileage uing the other motor i have dual 3 inch exhaust with flo pro mufflers coming today i got used online for 200 bucks besides drive train i want to keep everything stock with the exception of maybe some mags and a sport bumper for the rear, and no worries the running board and farmer mud flaps are coming off lol jittery guy: i might be happy driving it as it is..... for awhile haha as for 500 bucks that might get you the intake, vlve covers and oil pan lol hick: thats pretty much what i did..... you probably wont believe when i tell you, so hang onto your seats guys, i stole this truck for 100 big ones from an old man and i still feel guilty abut it..... sometimes |
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#15 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: 1980 gmc original vs modified HELP!!!
i'd throw the other HP motor in get it goin
if the truck was flooded that bad,could it have affected the engine tranny even worth a little over haul rather then blow it looks in great shape any chance it's 135,000? odmeters rolled faster in kms
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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#16 |
Registered User
Join Date: Apr 2009
Location: Waynesfield Ohio
Posts: 1,991
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Re: 1980 gmc original vs modified HELP!!!
WANT TO DOUBLE YOUR MONEY? I will be on the first flight out... lol
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![]() 1949 Five Window, 1973 Step Side, 2000 Z71 |
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#17 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: 1980 gmc original vs modified HELP!!!
have to pass on that offer lol
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#18 | |
Junior Member
Join Date: Sep 2006
Location: Olympia, WA
Posts: 122
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Re: 1980 gmc original vs modified HELP!!!
Quote:
I guess the main question I would ask is; what do you plan on using the truck for? If it is just a get around truck it makes no sense to me putting that kind of engine into it. You already have a project that you are tricking out so short of doing something similar to the 80 I would leave it stock. Just me though.
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I let my 16 year old son drive my every car that I own. I don't let him drive my truck. A man has to draw a line somewhere. |
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#19 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: 1980 gmc original vs modified HELP!!!
it will just be a summer truck, i had bought it to use as a driver but id end up feeling guilty driving it in the snow, 67 will be a cruiser
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#20 |
Registered User
Join Date: Sep 2000
Location: Gold Bar, WA
Posts: 1,216
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Re: 1980 gmc original vs modified HELP!!!
Looks like you need another truck for that engine.
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My Projects: 1960 GMC 1/2ton with 305 V6 (daily driver) 1963 Chevy 1/2ton 2wd...converting to 4x4 1967 Suburban 1/2ton 2wd My Girlfriends Projects 1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver) 1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam 1978 Camaro Z28 |
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#21 |
Senior Member
![]() Join Date: Jan 2012
Location: Estevan, Saskatchewan
Posts: 1,025
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Re: 1980 gmc original vs modified HELP!!!
what i need is a bigger yard and garage lol
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#22 |
Registered User
Join Date: Dec 2011
Location: Elkhart, IN
Posts: 1,308
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Re: 1980 gmc original vs modified HELP!!!
The truck is so close to perfect original condition from factory, I would leave everything original. And also fix all the little odds and ends to make it look factory again, but that's just me.
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1985 Chevrolet K10 Custom Deluxe---SOLD 1997 Ram 2500 5.9 Cummins 1985 Chevrolet Camaro Z28 1987 Chevrolet K10 Silverado "The Beast" build 1987 Silverado http://67-72chevytrucks.com/vboard/s...=1#post6150257 |
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#23 |
Registered User
![]() Join Date: Oct 2009
Location: SoCal
Posts: 815
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Re: 1980 gmc original vs modified HELP!!!
You want opinions? Heres mine.. Leave the truck alone, its practically new condition. Ditch the ONE running board, mud flaps, and just drive it. Throw on flowmaster exhaust maybe to give you some tone. Sell or trade the sbc for $ or something else.
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#24 |
Registered User
Join Date: Nov 2009
Location: Edmonton Alberta
Posts: 286
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Re: 1980 gmc original vs modified HELP!!!
one more reason i hate sask...
I couldnt find some thing like that out here if i robbed and old man blind
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1989 3+3 2wd Dually. 454 BB. Factory loaded for the day, including Alcoa rims. |
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#25 |
Registered User
Join Date: Oct 2003
Location: houston, texas
Posts: 1,974
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Re: 1980 gmc original vs modified HELP!!!
i was in the same boat as you with my 76 being low mileage original. I built this engine for mine, its sort of "stock looking" with the restored exhaust manifolds, NOS air cleaner and I kept everything black even though I think it should have been light blue for that year. The edelbrock intake manifold is the retro style with oil fill tube in front. Disregard the aluminum valve covers, those are being replaced with 68 camaro steel black covers.
Guess my point is, you can update the engine and still keep it sort of stock looking. Its whats inside an engine that counts.
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2008 Silverado Z71 RCSB 1991 GMC Jimmy 4x4 1976 GMC Sierra C15 SWB |
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