KTM SX-F 350 2019-2020 EXC-F 350 2020 90mm 366cc BIG BORE KIT
Big Bore Cylinder Kit for 4-Cycle engines. Features a 90mm cylinder diameter, 366cc displacement, and a 14.0:1 compression ratio. This new cast aluminum nickel silicon carbide (NSC) electroplated cylinder increases horsepower and engine displacement. The NSC surface provides excellent wear resistance and oil retention, with a diamond honed finish for proper ring seal. Includes a hand matched Vertex forged 2618 aluminum alloy big bore piston (available in A, B, C, D sizes) for superior strength and durability. Also includes a complete Vertex big bore gasket kit with head, base, exhaust gaskets, and O-rings for top-end rebuilds.
- SKU
- CW.51008-K01
- Brand
- Cylinder Works
- Availability
- In Stock (1)
FULL DESCRIPTION
High Performance 366cc Big Bore Cylinder Kit
Upgrade your engine performance with this premium Big Bore Kit, designed to provide a significant boost in displacement and power. This kit is engineered to increase your engine to 366cc, delivering a more exhilarating riding experience and improved torque across the powerband.
Precision Engineered Components
This kit features a new, cast aluminum big bore cylinder treated with a nickel silicon carbide (NSC) electroplated finish. This advanced composite coating provides a superior wear-resistant surface with excellent oil retention capabilities. Each cylinder is diamond honed to exact specifications, ensuring an optimal ring seal and consistent engine performance.
Vertex Forged Piston Technology
The included Vertex piston is forged from high-quality 2618 aluminum alloy, providing the strength and durability required to handle increased internal combustion pressures. Utilizing unique piston profiles and a 14.0:1 compression ratio, these pistons are hand matched to the cylinder to maximize power output while effectively reducing blow-by and oil consumption.
Complete Top End Rebuild Solution
Each kit arrives ready for installation with all the necessary components for a top end rebuild. By including all essential gaskets and O-rings, this package simplifies the maintenance process and ensures a factory-grade seal for your engine.
Key Features
- Displacement: Increased to 366cc via a 90mm cylinder bore
- Compression Ratio: 14.0:1 for enhanced power delivery
- Cylinder Material: Cast aluminum with nickel silicon carbide (NSC) plating
- Piston Construction: Forged 2618 aluminum alloy for maximum durability
- Precision Matching: Vertex piston hand matched to the Cylinder Works cylinder
- Maintenance Ready: Includes comprehensive top end gasket and O-ring set