1978 GMC C-15 heavy half LS Swap













Vehicle Description
1978 GMC C15 Heavy Half single cab long-bed (RPO F44) with a modern fuel-injected LSx engine swap and factory power windows/steering/brakes, factory tilt steering column, and manual door locks. The engine is a 2000 LM7 truck 5.3 rebuilt with a Summit stage 1 Pro LS (SUM-8718) truck tow/rv camshaft and a TBSS intake with 92mm throttle body upgrade and upgraded 36lb GM OEM injectors. Has a stand alone Aces Jackpot EFI ECU with a 5" handheld controller that has been road-test tuned for good drivability. New GM OEM coil packs installed with new spark plug wires and plugs. Dirty Dingo LS adapter mounts. Power steering hoses adapted to LS style pump. Exhaust consists of Summit cast LS swap exhaust manifolds (SUM-G9080) connected to a home built system using a factory Y-pipe to a 2 3/4 single pipe with a Magnaflow muffler that dumps before rear axle and wide-band O2 sensor installed. Transmission is a rebuilt TH350 with a Transgo shift kit, hardened direct drum race, red clutches, and Kolene steels. Has a Hughes Tow Master converter with 1800 stall and an Advanced Adapters flex-plate. Lokar column shifter upgrade kit installed. New aluminum 3-row crossflow radiator with dual e-fans and ECU fan control, new GMB water pump and new thermostat/housing as well as a heavy-duty external transmission cooler. Factory 3.40 ratio 12-bolt rear axle has been serviced and driveshaft has new u-joints and a new front yolk as well. New front fenders, inner fenders, and a new steel cowl induction hood. The front suspension has been rebuilt with new upper control arm assemblies, new lower ball joints in original control arms (except lower bushings as they were good - replacement bushings are included as spare parts), center link/pitman arm/idler arm, inner/outer tie rods and adjusters, and a fresh alignment. New poly body bushings were installed (core support/cab). New brakes all the way around including a new master cylinder, new rotors and bearings, new calipers/pads and front brake hoses, new drums and shoes and hardware kits, and rear wheel cylinders and new rear brake hose. New Gabriel gas shocks all the way around. New EFI style gas tank and sender (read below) with a walbro 255 in tank fuel pump. New 21-circuit wiring harness installed. It has Intellitronix digital gauges (GPS speedometer) and all new switches for ignition, turn-signal, headlights etc. New Grant 3-spoke steering wheel. The seat has been re-done in vinyl with sunk-in cup holders. New carpet kit and sound deadening material and floor of cab was painted with POR-15, new aftermarket door panels with new locks keyed same as ignition switch. New dash hard cover, and new seat belts. New front windshield and gasket installed, and rear window has a new gasket installed. New headlight bulbs, new front park/turn lenses and new rear park/turn lenses as well. Rare Chevy 15x7 454 SS OEM chrome steel wheels with new GMC caps and new 235/75R15 Hankook radial tires.The engine runs well (starts right up just like a modern EFI engine should), and the transmission shifts crisp and the truck has plenty of power. Please see links to YouTube videos.https://youtu.be/4U2fA0NspwA?si=XFFXAoe86gBixkZMhttps://youtu.be/K-_Jg1A6GEc?si=KenL4_jjl3d8Tx_Chttps://youtu.be/K-_Jg1A6GEc?si=cBEj7tt9ls5KACKAhttps://youtu.be/b1as_BmARDQ?si=mLxZ-SzfwqQPsXP6This truck was originally built to be my daily driver, but due to unforeseen personal events, that didn't work out, so the truck is close but not all the way there. Please understand this truck needs some work to be a daily driver!!! A lot of money was spent on new parts and mechanically this truck has been gone through - but again it needs to have an owner that can complete what I started and get it the rest of the way to daily driver status!!! It has been reliable in the 200 miles or so I have put on it during tuning, but it is not at the point you are going to fly in and drive across the country. The fuel sender o-ring is leaking when the tank gas tank is full or near full, so tank needs pulled and new o-ring needs installed (a new sending unit will be included). Heater core isn't connected as it is leaking. The original GM AC/heater box with heater core/evaporator is installed, but most of the original GM engine compartment side AC components are missing (condenser, hoses, compressor, etc). I was planning on purchasing a complete Vintage Air retrofit kit (not included), so keep in mind currently there is no heat or AC. The driver and passenger doors have multiple screw holes in them where mirrors used to be installed and some dents and dings (I was thinking about just replacing the doors with new ones - but these doors could be repaired with some effort). The passenger door also has some rust out in the lower seem (see picture). There is a small area of rust in the drivers side cab where the door sill plate goes (see picture). There is also a small area of rust on the lower rear passenger wheel-well (see picture). The bed floor has no rust but the are some dents in the factory ribbing of the floor. The truck is in black primer right now, but does need some minor body-work and the previously mentioned rust issues addressed before it can be painted. There are some factory holes in the cab sides and bed sides where factory trim used to be. These will need welded and smoothed. The truck has been sitting outside so it does need cleaning and detailing, and the wiring and under dash area needs tidied up. There is no stereo or speakers installed! Drivers side door has new door handle installed, passenger side door handle is original but new door handle is included that needs to be installed. New door mirrors, poly sway bar and rear leaf spring bushings,new door sill plates, new door seals, and an aluminum radiator overflow tank are all included as extra parts that need installed.Asking $7,900 OBOchevy Chevrolet GMC c10 c15 c-10 c-15 squarebody