107" to 124" 4.25" big bore conversion cylinders for M8

Black with highlighted fins. This is a quality 4.25" bolt-on big bore cylinder kit for 107" M8 models with stock 3.937" bore x 4.375" stroke. Kit can be used with a 4.25" Wiseco big bore piston & ring kit. Cylinders include dowel pins and are marked for correct front/rear installation. Capacity will increase from stock 107" (106.52" / 1746cc) to a hefty 124" (124.13 / 2034cc) but still installs without crankcase machining. Flywheel re-balancing is not required. Compression ratio is 1:11 and is compatible with the stock camshaft. Includes installation instructions.
Note: Order 576555 Wiseco 4.25" bore conversion piston & ring kit & 576556 Wiseco gasket kit separately.