Hello Squarebody lovers
- Thread starter OneSquarehead
- Start date
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FireTruck1984
Full Access Member
- Joined
- Jan 7, 2019
- Posts
- 2,986
- Reaction score
- 9,926
- Location
- Michigan
- First Name
- Ted
- Truck Year
- 1984 and 1984
- Truck Model
- High Sierra K1500 350. Sierra Classic C1500 305.
- Engine Size
- 350, 305
Welcome from the Motor City!
Finkaire
Finkaire
- Joined
- Dec 28, 2021
- Posts
- 454
- Reaction score
- 746
- Location
- California
- First Name
- Loren
- Truck Year
- 1984
- Truck Model
- Silverado c10
- Engine Size
- 305
Welcome from NorCal!
- Joined
- Sep 1, 2018
- Posts
- 1,036
- Reaction score
- 2,184
- Location
- Washington State
- First Name
- Craig
- Truck Year
- 1973 (have two), 1985
- Truck Model
- K10, K20, C20
- Engine Size
- 350, 454, 6.2 Detroit
Howdy from the WA cascade mtns. A 350 with a 4l80e? Must be a swap and if so, you are a lucky guy, fine trans and looks like a great rig. Like that you use it!!
Also...since the 4l80e is electronic, you would need some kind of controller. What is your controller, or is it a TH400, and not a 4l80e
Also...since the 4l80e is electronic, you would need some kind of controller. What is your controller, or is it a TH400, and not a 4l80e
Last edited:
Long Rider
Full Access Member
- Joined
- May 5, 2023
- Posts
- 78
- Reaction score
- 158
- Location
- La Grande Oregon
- First Name
- Jim
- Truck Year
- 1979
- Truck Model
- C10
- Engine Size
- 350
Welcome aboard. You will find many kindred folks here and tons of knowledge on here. My second Sq Body was also a county rig.
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- Joined
- Jan 11, 2022
- Posts
- 59
- Reaction score
- 110
- Location
- San Jose, CA
- First Name
- Rob
- Truck Year
- 1976
- Truck Model
- K20
- Engine Size
- 400
Welcome from CA!
David King
Full Access Member
- Joined
- Jun 19, 2023
- Posts
- 166
- Reaction score
- 247
- Location
- Crestview Fl. 32539
- First Name
- David
- Truck Year
- 1985
- Truck Model
- C-10
- Engine Size
- 305
Welcome from the FL panhandle!
Fat 454
Full Access Member
- Joined
- Jul 24, 2012
- Posts
- 107
- Reaction score
- 184
- Location
- Australia
- First Name
- Andy
- Truck Year
- 1973
- Truck Model
- C20 Suburban
- Engine Size
- 454
Welcome - that is an Awesome truck. More pics please, and lets know what are you plans for it ? We are planning to do a dually to single rear wheel axle swap on our crew cab over Christmas for my son's work truck. It is a factory 454 with TBI and a turbo 400. Would be real interested to know what sort of performance / fuel useage you are seeing out of that combo, as we are looking at powertrain options too. Very cool ...
OneSquarehead
Junior Member
- Joined
- Nov 5, 2023
- Posts
- 4
- Reaction score
- 30
- Location
- United States
- First Name
- tom
- Truck Year
- 1974
- Truck Model
- K10
- Engine Size
- 350
It's a '91, last year of the squarebody, I keep it close to stock and the small block is adequate for my usage, I replaced the catalytic converter with a high flow piece and gained almost 2 mpg, it gets almost 14 on the highway at 75 and no headwind and has dipped well into the single digits at 80+ with headwind, it could definitely benefit from a big block but I really like it just the way it is.
squaredeal91
Full Access Member
- Joined
- Mar 10, 2023
- Posts
- 2,534
- Reaction score
- 4,583
- Location
- Cave junction Oregon
- First Name
- Greg bush
- Truck Year
- 1991 SB
- Truck Model
- K30
- Engine Size
- 5.9 Cummins 12 valve
Big yellow is also a 91 (GMC) originally a 6.2 sm465. Got it with a 6.5, wish I kept it because now I could use it in my old daily.
- Joined
- Aug 18, 2010
- Posts
- 10,322
- Reaction score
- 10,214
- Location
- North East Texas
- First Name
- Shawn
- Truck Year
- 1982 & 1985
- Truck Model
- K10 Extra Cab w/ Proper SWB, & 85 K5 Blazer
- Engine Size
- 454 BBC, & 383 Stroker
ChuckN
Full Access Member
- Joined
- Nov 8, 2022
- Posts
- 1,314
- Reaction score
- 3,996
- Location
- Bellinham, WA
- First Name
- Chad
- Truck Year
- 1981
- Truck Model
- C10
- Engine Size
- 350
Welcome from the upper left corner! Nice rig, I like it.
Every time @Doppleganger puts that picture up, I get a hankering to go watch some old Hee Haw.
Every time @Doppleganger puts that picture up, I get a hankering to go watch some old Hee Haw.
