Built for around $20K, Shawn Hopkins’ DIY-built LS V-8–swapped 1977 Oldsmobile Cutlass is a master class on how to maximize ...
The base engine is a 4.3-liter V-6. Silverado trim levels start with the Work Truck and progress to the LS, LT, LTZ and top ... mpg city/highway/combined, a 5.3-liter with the eight-speed gets ...