Most quality cast pistons have a silicon content of 18% or so versus a forged pistons max of aprox 12%. This higher silicon content results in less piston expansion and better high heat thermal properties which is desirable and critical in a 2 Stroke engine. The forged piston is stronger due to its grain structure which is desirable for a 4 stroke application.
AuthorI have been involved in mechanics and motorcycling from a young age. I formed Cycle Improvements in 1981 and still have the same passion to learn today as when I started. Hope you find this blog interesting and educational. Archives
March 2021
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