KTM SX-F 250 2013-2015 EXC-F 250 2014 - 2016 81mm 270cc BIG BORE KIT
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Cylinder Works 270cc Big Bore Cylinder Kit. Features an 81mm bore and 13.9:1 compression ratio. This 4-cycle, new, cast aluminum nickel silicon carbide (NSC) electroplated big bore cylinder increases horsepower and engine displacement. NSC provides an excellent wear-resistant surface with oil retention capabilities. Cylinders are diamond honed to the exact bore dimension and proper surface finish for correct ring seal and oil retention. Includes a hand-matched Vertex big bore piston forged from 2618 aluminum alloy for superior strength and durability, featuring unique piston profiles and compression ratios. Also includes a Vertex big bore gasket kit with head, base, and exhaust gaskets, plus O-rings.
- SKU
- CW.51004-K01
- Brand
- Cylinder Works
- Availability
- In Stock (1)
- SKU
- CW.51004-K01
- Brand
- Cylinder Works
- Availability
- In Stock (1)
FULL DESCRIPTION
Increase Power with the Cylinder Works 270cc Big Bore Kit
Boost your engine performance with this premium Big Bore Kit from Cylinder Works. Designed to provide a significant increase in displacement and horsepower, this kit offers an efficient and reliable way to upgrade your 4-cycle engine for a more exhilarating riding experience.
High Performance Cylinder Construction
The included cylinder is cast from high-quality aluminum and features a nickel silicon carbide (NSC) electroplated finish. This advanced composite coating provides superior wear resistance and excellent oil retention capabilities. Each cylinder is diamond honed to exact bore dimensions, ensuring a perfect ring seal and optimal engine longevity. These are new components, not remanufactured, ensuring consistent quality and performance.
Precision Forged Vertex Piston
To withstand the internal pressures of a high-performance four-stroke engine, this kit features a forged Vertex piston. Crafted from 2618 aluminum alloy, these pistons offer exceptional strength and durability. The piston profile is engineered to maximize power while effectively reducing blow-by and oil consumption. Each piston is hand-matched to its specific cylinder to ensure a precise, professional fit.
Complete Top-End Gasket Kit
Maintenance and installation are made easier with the included top-end gasket kit. This comprehensive set contains all necessary components for a successful build, including:
- Head gaskets
- Base gaskets
- Exhaust gaskets
- Required O-rings
Key Features
- Increased Displacement: Boost your engine to 270cc for improved power delivery.
- Compression Ratio: Engineered with a 13.9:1 compression ratio.
- Cylinder Diameter: Precision bored to 81mm.
- Durable Finish: Nickel silicon carbide coating for reduced friction and heat resistance.
- Ready for Install: Includes all essential gaskets and seals for a complete top-end rebuild.
QUESTIONS? JUST ASK
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Call or email us with your make, model and year and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
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