M&M Cycles is now Mozaic Racing! Read About Us.

S&S 106" Big Bore Kit for 2007-2017 Harley Twin Cam

S&S 106" Big Bore Kit for 2007-2017 Harley Twin Cam

This part is bike specific. It will not fit all makes / models / years.

If you enter fitment information, we'll only show you the options that work for your bike.

$ 913.12 Reg $ 997.95 $ 84.83 Savings Add to Cart to See Lowest Price Enter your bike's fitment to see our inventory levels. Free Shipping Eligible! $0.00 Tax Collected Outside Ohio
Add to Cart

Product Overview

This bolt-on big bore cylinder and piston kit will increase the displacement of 96" or 103" engines to 106". It is as easy as a stock top end rebuild and requires no machining or flywheel rebalancing. For best performance, appropriate camshafts, performance air cleaner, performance exhaust and fuel system tuning are required.

106" Kits have a 10:1 Compression ratio when used with stock heads. Will fit Twin Cooled motors (water cooled heads)

The Big Bore kit yields excellent results with stock cylinder heads
Easy installation: no need to bore or split existing cases, just swap the cylinders
Cylinders are constructed from premium aluminum castings with cast-in iron liners
Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
Black or silver powder-coat finish
Made in the U.S.A.

NOTE: This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.


FREE shipping on orders over $150 within the continental U.S. We ship Worldwide!

We guarantee our product will fit on your vehicle our we pay return shipping.

Shop Mozaic Racing for Parts and Accessories for your Harley, Indian, Sport Bike, or Metric.