new to the forum.....just picked up a sweet K25!

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ronniebomb

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Location
n.e. Ill
First Name
ron
Truck Year
1978
Truck Model
K25 Sierra Classic
Engine Size
454/t400/np203
Hi y'all!
Love the forum! I've owned a couple other square's over the years.....an 85 3/4 ton rusty old plow truck.....a pretty nice 79 3/4 ton 2WD 454 burb.....but nothing as clean and original as this new one I just picked up right before Christmas. I've literally been looking for 6 months since I sold my 99 K2500 4x4 suburban. With a family of six, the burbs worked well for us. But now that most of the kids are grown up and moved out.....it was finally time for a nicer truck.


It's a 78 K25 454 T400 3.73 gears........with and original 51,000 miles! It came with a small block 400, but the original owner didn't like it, so he had the dealer put in a 454! It is super tight driving and well maintained.
I just finish oiling up the under carriage with the Carwell marine/military application rust preventitive so I can drive it in the winter months. It sat the last several years so I'm going through everything and correction small issues and routined maintenance. It has been stored indoors it's entire life!
I'm going to take care of this one!

I'll throw some more current pix up as these were from last year! lol!

Looking forward to meeting y'all!
Ron M.

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RedBeard_83

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Cory
Truck Year
1986
Truck Model
Custom deluxe
Engine Size
Sbc 350
Niiiice ! Welcome from florida
 

DoubleDingo

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1981
Truck Model
81-C20 Silverado Camper Special-TH400-4.10s
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Carb'ed Vortec 350
Wow, great truck! Welcome aboard!
 

Frankenchevy

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Small
Damn, real nice!
 

Babs

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Ottawa Valley
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Paul
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Engine Size
350
:welcome: nice truck
 

Catbox

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First Name
Peter
Truck Year
1979
Truck Model
C20 Silverado Camper Special
Engine Size
461
Welcome to the forum and that is a nice looking truck you have there.
 

Grit dog

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Auburn, Washington
First Name
Todd
Truck Year
1986, 1977
Truck Model
K20, C10
Engine Size
454, 350
Wow man! Beautiful truck!
That last pic is the best!
 

Craig 85

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Nashville, TN
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Craig
Truck Year
1985
Truck Model
K30 SRW
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454/TH-400/NP205
Welcome. Beautiful truck!
 

75Monza

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454, 383, 350
Nice, Damn awesome truck!
 

75Monza

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Truck Year
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454, 383, 350
Also, thanks for intro with pics...we are a bunch of pic ****** here, lol.
 

HOTFOOT

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northwest ct
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michael
Truck Year
1980
Truck Model
gmc k3500 srw
Engine Size
400
Welcome from Connecticut sweet ride
 

Bextreme04

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Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl
Man that's a beauty. Looks a lot like my 80 K25 Sierra Classic. I really like the winch setup on that factory bumper, I've been thinking about doing the same thing. How is it mounted back behind the bumper?
 

ronniebomb

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Location
n.e. Ill
First Name
ron
Truck Year
1978
Truck Model
K25 Sierra Classic
Engine Size
454/t400/np203
Thanks for the warm welcome all!

I'm presently working through a misfire I can't get a handle on. The engine runs great, it has less than 40,000 miles on it. When I purchased it, it wasn't running very smooth. So I threw a set of plugs, cap and rotor on it. Still didn't take care of the miss. So, I changed out the ignition module and the coil. Still a miss....so I rebuilt the carb. Much better! I've only driven it to work a couple of times which is only a 12 mile trip one way. Never noticed the miss until I needed to haul some things to/back from storage which is a 20 mile trip. The miss showed up again. It runs great off idle up to about 2000-2500 RPM. Then if I give it more throttle than that, it has a misfire that seems like a bad plug or wire type of miss. But when you let off the gas back to an idle, it runs smooth as silk. I'm thinking the plug wires are the only culprit left that could be causing the problem.....the reason I didn't change them is they still look like new! So, whith that being said, I will have to try changing them out also.
 

ronniebomb

Member
Joined
Dec 29, 2020
Posts
33
Reaction score
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Location
n.e. Ill
First Name
ron
Truck Year
1978
Truck Model
K25 Sierra Classic
Engine Size
454/t400/np203
Man that's a beauty. Looks a lot like my 80 K25 Sierra Classic. I really like the winch setup on that factory bumper, I've been thinking about doing the same thing. How is it mounted back behind the bumper?

I'll try to take some pix from underneath in the near future. I need to get a winch controller cable because the person I bought if from didn't have it.

It's so clean because it came from Oregon. Only in Wisconsin for a few years from what I understand.....and stored indoors.
 

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