Koso Big Bore Kit with 4-Valve Cylinder Head
- Top-end kit with cylinder head for maximum performance
- High-quality components for reliability and durability
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Each kit includes:
- 4 valve cylinder head
- 170cc ceramic coated cylinder
- 61mm forged piston
- Performance camshaft with bearing
- Rocker arms
- Intake manifold
- Gaskets
- Instructions
- Reliable power in one box
Product Note: Requires Koso high-flow injector, Hurricane air filter, 34mm throttle body, high-flow oil pump and NGK-ER9EHIX to complete installation (sold separately).
Specification | Details |
---|---|
Bore | 61 mm |
Displacement | 170cc |
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Honda
Honda
- MSX125 Grom 125 2014-2015, 2017-2020
- Monkey 2019-2021
- Monkey ABS 2019-2021
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