1951 GMC Truck
The 1951 GMC truck is a slightly bigger, more powerful and stronger version of the 1951 Chevrolet truck. The GMC and Chevrolet trucks shared identical transmissions, suspension and bodies, but the GMC featured a thicker frame and larger engine. Chevy pickups shared its engines with General Motors’ automotive lines. GMC had specially manufactured truck engines. Although GMC and Chevrolet shared most of the same sheet metal, GMCs had a distinctive grille, tailgate, hubcaps and exterior colors. Power The 1951 GMC base engine for the half-ton pickup was the 228-cubic-inch in-line six-cylinder. In contrast, the base Chevrolet model featured the smaller 216.5-cubic-inch straight-six. The 93-horsepower 228 had a 3.6-inch cylinder bore and a 3.8-inch stroke. The 228’s compression ratio was 8-to-1. The optional 110-horsepower 248 straight-six had a 3.7-inch bore and 3.8-inch stroke and 7.5-1 compression. The biggest powerplant available on the GMC truck was the 115-horsepower 270 six-cylinder with a 3.7-inch bore and 4-inch stroke. The 270’s compression ratio was 7.5-to-1.
The 1951 GMC truck is a slightly bigger, more powerful and stronger version of the 1951 Chevrolet truck. The GMC and Chevrolet trucks shared identical transmissions, suspension and bodies, but the GMC featured a thicker frame and larger engine. Chevy pickups shared its engines with General Motors’ automotive lines. GMC had specially manufactured truck engines. Although GMC and Chevrolet shared most of the same sheet metal, GMCs had a distinctive grille, tailgate, hubcaps and exterior colors. Power The 1951 GMC base engine for the half-ton pickup was the 228-cubic-inch in-line six-cylinder. In contrast, the base Chevrolet model featured the smaller 216.5-cubic-inch straight-six. The 93-horsepower 228 had a 3.6-inch cylinder bore and a 3.8-inch stroke. The 228’s compression ratio was 8-to-1. The optional 110-horsepower 248 straight-six had a 3.7-inch bore and 3.8-inch stroke and 7.5-1 compression. The biggest powerplant available on the GMC truck was the 115-horsepower 270 six-cylinder with a 3.7-inch bore and 4-inch stroke. The 270’s compression ratio was 7.5-to-1.