971626 Cylinder sleeve. 3-1/2" bore

If the cylinders on your late-model Shovelhead are getting thin, these MCS cylinder liners are the professional way to restore them to their original glory. This sleeve features a 3-1/2 inch stock bore, which is roughly 88.8mm, and is specifically designed to fit 1979 to 1984 80 cubic inch 1340cc Shovelhead engines. We always recommend that a qualified mechanic performs the installation, as they need to verify the fitment and make any necessary adjustments to ensure compatibility with the rest of your top-end components. This liner is sold individually and carries the OEM number 971626.