ATI Crank Hub - Steel - Chevy SB - w/1.600 Crank w/2nd 1/4 Keyway

If you're working on a Chevy small block engine that uses a 1.600-inch crankshaft and requires a second 1/4-inch keyway, this steel crank hub from ATI is what you need. It's designed to securely mount your harmonic balancer to the crankshaft, ensuring proper timing and preventing slippage under load. This is a critical component for keeping your engine running smoothly and reliably, especially in performance applications where stock parts might not hold up.

This hub is constructed from durable steel, offering a strong and well-built solution for your engine build. The inclusion of a second 1/4-inch keyway provides an additional point of engagement, which can be beneficial for added security and alignment, especially when dealing with higher horsepower or aggressive driving conditions. ATI is a well-known name in performance engine components, and this hub reflects their focus on providing solid parts for demanding builds.