GMC Sierra 1978 Manual Gasoline For sale: 1978 GMC engine 6.2 Model 1978 Base 454 Size 35 Engine modified with stage 3 camshaft, Taxus Speed Corvette 821 engine heads Denali engine radiator Modified pistons and connecting rods Seating on original factory seats without cutting or welding The car is guaranteed: engine, gearbox, and chassis Air conditioning is working and cold, ماشاءالله Renewed with original factory parts Sale with or without the license plate