The small block Chevrolet engine, commonly known as the SBC, was introduced in 1955 as a 265 cubic inch V8 for the Chevy Bel Air and Corvette. While its 195 maximum horsepower and 260 lb-ft of torque were nothing to scoff at in 1955, it was just the tip of the SBC’s potential.  Over the years, the SBC platform has enjoyed gains in horsepower and reliability thanks to improvements in technology and materials. It kept its original 4.40-inch spacing
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