To handle the internal pressures of a four-stroke engine, Vertex's big bore four-stroke pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability. Vertex uses unique piston profiles and compression ratios to maximize power and performance while reducing blow-by and oil consumption. Each Vertex piston is then hand matched to fit each Cylinder Works cylinder perfectly.
Replacement standard piston for the Cylinder Works Big Bore Kit.
All pistons include rings, pin, and clips.
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A: Unfortunately there will not be a piston readily available to bore this model out to a 600cc or 700cc machine. You will need to have a machinist look at your cylinder to verify exactly how large it can be bored out to. From there you can send the piston to a manufacturer such as Wiseco to have the piston made in the correct bore size that will retain the correct pin height and other critical dimensions.