1979 GMC K-25
1979 GMC K-25
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Frame off restoration including frame swap and complete custom drivetrain
Frame off restoration including frame swap and complete custom drivetrain
See the three year transformation of this 1979 GMC truck, starting with the seemingly useless pile of scrap sitting in the weeds, evolve into the beautiful show truck you see above!
See the three year transformation of this 1979 GMC truck, starting with the seemingly useless pile of scrap sitting in the weeds, evolve into the beautiful show truck you see above!
Engine / Drivetrain
Engine / Drivetrain
383 Cubic Inch Small Block Chevy based , roughly 11:1 compression ratio , 450 hp
Full roller internals
Comp Cams Big Muthr Thumpr Roller Camshaft
Dart 63cc Aluminum Heads
Hypereutectic flat top pistons
H beam Dart connecting rods
Dart stroker crankshaft
Edelbrock Performer RPM dual plane intake manifold
Accel HEI Ignition
Holley Sniper EFI
Heddman full length headers running through a full 2.5 inch dual exhaust
Thrush Turbo mufflers
TurboHydromatic 400 3 speed automatic transmission
GM Corporate 14 bolt rear differential, 4.10:1 gear ratio
Dana 44 front differential
New Process Gear 203 full time transfer case
Body / Paint
Body / Paint
Single cab , 8 foot stepside box
Red oak wood bed floor
Polished stainless steel fasteners on bed and bed floor
Polished stainless steel bed rails
3 inch body lift
2.5 inch suspension lift
American Racing aluminum wheels
Hankook Dynapro 33 inch tires
Custom Details
Custom Details
Paint color is a one of a kind white with PPG rainbow metallic flake embedded in the first base coat, covered with a white pearl and followed by 6 coats of clear
This is the way I found the truck, rotting in the weeds. Upon teardown most of the original body was useless and the frame was rusted beyond repair. See below the brown parts truck from which the frame and some of the drivetrain was used.
See below pictures of the rotted floorpan, a special made cart which I designed and built to retain the original body mounting locations. This was made using an old section of the rotted frame from the yellow truck and an old hospital gurney as a base. Also see pictures of the new cab supports and floor pans as I installed them.
Above see pictures of the engine during assembly and the truck as I started to mount body panels in a preliminary test fit stage. From here it included countless hours of detail work including interior, bed wood, and many other details that you wouldn't think take hundreds of hours to do
This project was a huge undertaking. I did all of the work myself, with help from friends and family along the way. A friend of mine and I painted the truck, I built the engine, rebuilt the automatic transmission, and did all of the assembly of the drivetrain. The truck was gone through top to bottom, leaving no bolt unturned. I am now working on installing a self learning EFI kit on the small block 383 ci. power plant.
This project was a huge undertaking. I did all of the work myself, with help from friends and family along the way. A friend of mine and I painted the truck, I built the engine, rebuilt the automatic transmission, and did all of the assembly of the drivetrain. The truck was gone through top to bottom, leaving no bolt unturned. I am now working on installing a self learning EFI kit on the small block 383 ci. power plant.
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