K1 Technologies strives to supply racers, builders, and performance enthusiasts alike with high-quality crankshafts and connecting rods at a reasonable cost. All K1 crankshafts and connecting rods are manufactured from premium, 4340 steel and are held to incredibly tight tolerances to ensure precision fit and performance. A wide variety of sizes and applications are available to cover many build variations, from smaller, sport compact applications all the way up to big block and modern domestic engines. All K1 components are 100% designed, finished and inspected in the USA. Let K1 Technologies power your passion for your next build!