Description
Revolution Performance 114/117″ to 128″ Bolt-On Big Bore Kits:
- Available for 114/117 M8 models
- 114/117″ to 128″ big bore kit
- 3 finishes to choose from
- Revolution Performance cylinders are aerospace-grade all-aluminum cylinders with nickel-silicon-carbide (NSC) electroplated bores
- NO SLEEVING allows for larger bore sizes
- NSC-Plated Cylinders have less friction for increased horsepower, lower engine temperatures and a longer lifespan
- True bolt-on kit that delivers major power durability and strength
- Includes a pair of all-aluminum NSC-coated bore cylinders, custom-forged pistons with high-tension rings specifically designed for NSC cylinders and a head/base gasket set
- includes gaskets and hardware required for installation
- 4.250″ bore, 4.500″ Stroke, 11.3:1 Compression w/ 88cc Heads
- Made in the U.S.A.
- This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.
- We highly recommend using Feuling’s ARP Cylinder Stud kit during install to avoid reusing stretched stock cylinder studs.
Not recommended for Tri-Glide or other three-wheel models including conversion due to lugging nature of these bikes. Â
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Important Information (MUST READ):
*A ThunderMax Autotune System is highly recommended for this product if you do not already have an aftermarket tuner. If you have one already, we can also provide you a recommended base map if you purchase this kit.*









