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

Revolution Performance Big Bore Kits for Sportster

Revolution Performance Big Bore Kits for Sportster

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.

$ 961.38 Reg $ 1,089.95 $ 128.57 Savings Enter your bike's fitment to see our inventory levels. Free Shipping Eligible! $0.00 Tax Collected Outside Ohio
Add to Cart

Product Overview

Revolution™ aerospace-grade all-aluminum cylinders with nickel-silicon-carbide electroplated bores, which means NO SLEEVING; allows larger bore sizes and less friction for more horsepower, lower temps, and a longer lifespan
True bolt-on kit that delivers major power with no machine work required
Also includes Wiseco forged pistons with rings (that are specifically designed for optimal compatibility with Revolution Performance's cylinders), wrist pins, circlips and high-performance head and base gaskets

Includes Flat Top or Dished Pistons
Compression Ratio 10.5:1
883 to 1250 conversions require Dished Pistons

Made in the U.S.A.


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.