Proflow Crankshaft Key, Woodruff Key .187"x .750"x.300" Suit S/B B/B Chev, Pair

Proflow Shaft Keys Proflow's shaft keys are designed to locate the crank sprocket on the nose of the crankshaft. They're made of steel and available in several lengths for compatibility with many vehicle makes and engine models from the 1940s and up. The keys can be ordered individually or in larger quantities, depending on the application.