S&S Cycle 70-84 BT 86in Stock Bore Stroker Kit

What you get with this S&S Cycle Stock Bore Stroker Kit is a dynamically balanced 4-5/8 inch stroke flywheel assembly. This assembly comes complete with S&S heavy-duty connecting rods and mainshafts, ready to give your engine a significant displacement upgrade. It's designed as an economical way to boost the cubic inches of your Shovelhead engine, specifically upgrading 74 inch and 80 inch models to a robust 86 inch displacement.

This kit allows for two compression ratio options: approximately 9.4:1 or 8:1, depending on your build and piston choice. To make this stroker kit work, you will need to perform some minor modifications to your crankcase and cylinders. It's also important to note that this kit requires special pistons, which are not included but are readily available to complete the build. The balanced flywheel assembly with S&S heavy-duty rods and mainshafts is built for reliable performance, giving your engine more torque and power.

When planning this upgrade, remember that crankcase and cylinder modifications are necessary, so factor that into your project timeline. The inclusion of S&S heavy-duty connecting rods and mainshafts means you're getting well-built components designed to handle the increased stress of a larger displacement engine. This kit is a popular choice for riders looking to get more out of their classic Shovelhead engines without a complete engine replacement.