Revolution Performance Bolt-On Big Bore Kit
- 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 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
- Available in a variety of finishes
- Replacement head and base gasket sets available separately
- Made in U.S.A.
**Note: 91-03 Sportster must use XL1200 head.
Item # 56996
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