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Ready-to-install, direct bolt-on cylinders require no replating and look virtually identical to the OEM
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Nickel Silicon Carbide plated for long life
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Honed to exact size for easy piston installation
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Big bore cylinders do not require machine work
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Big bore cylinder kits come complete with gaskets, cylinder, piston, rings, pin and clips
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Nothing else needs purchased, true bolt on equipment
This is the entire cylinder no core charge or sleeving required, true bolt on equipment
Back by popular demand, Cylinder Works now offers a new and improved +3mm Big Bore Kit for speed-hungry, budget-conscientious riders looking to increase horsepower and torque. The kits increase displacement to 478cc, and come with the big bore cylinder, a forged Vertex piston and a complete top end gasket kit.
Our cylinders are not factory cylinders that have been bored out; they are brand new cylinders, designed to stand up to the increased pressure that comes from larger displacement, while retaining a stock look. In addition, they are Nikasil-coated, allowing for tighter piston to cylinder clearance, giving you more power for your machine.
All of our cylinders are machined and plated in the U.S. and are hand-matched with a Vertex Piston, so you are guaranteed the best piston to cylinder fit. The only thing the installer needs to do is to check and adjust ring-end gap, if necessary.
The +3mm Big Bore Kit is a complete package, designed to give the power you need to reach those finish line winning speeds
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Check out are other listings for gaskets, big bore hotcams cams, cranks, exhaust and may other of your ATV and bike needs
Click the APEX link above to visit our Ebay store