S&S Cycle 65-69 BT 84in Stock Bore Stroker Kit

S&S Cycle is well-known for making powerful engine components for Harley-Davidson motorcycles. If you're looking to get more displacement out of your 1965-1969 Big Twin engine without changing the stock bore, their 84 cubic inch Stock Bore Stroker Kit is a solid option. This kit is designed to economically upgrade your 74 cubic inch Panhead engine to a larger 84 cubic inch displacement, giving you more power and torque.

This kit includes a dynamically balanced 4-1/2 inch stroke flywheel assembly. It comes complete with S&S heavy-duty connecting rods and mainshafts, built to handle the increased demands of a larger displacement engine. To make this kit work, you will need to perform minor modifications to your crankcase and cylinders, and you'll reuse your stock cylinders. This kit also requires special pistons, which are not included but are necessary to achieve the 84 cubic inch displacement.

With this stroker kit, you can achieve either approximately 8.4:1 or 7.3:1 compression ratios, depending on your specific setup and piston choice. It's important to note that this kit is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for detailed procedures and any additional components you might need.