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The CYLINDER WORKS High Compression Cylinder Kit is designed for Yamaha engines with a 77 mm bore, offering a direct bolt-on replacement that requires no re-plating. Crafted to match OEM specifications, these cylinders maintain the original look while delivering enhanced performance. The kit includes a nickel silicon carbide-plated cylinder for durability and long-lasting wear, ensuring your engine remains protected under demanding conditions. Made in the USA, this kit provides peace of mind with quality construction and compatibility. The included matched Vertex pistons, rings, pins, clips, and top end gasket kit make installation straightforward, reducing downtime and ensuring optimal engine performance. Whether you're restoring your engine or seeking a performance upgrade, this kit offers a reliable solution that balances longevity and power in a compact design.
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