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Screamin' Eagle 4.155" Big Bore Bolt-On Cylinders

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Increase the displacement of your Milwaukee-Eight® engine without removing the engine from the chassis. The Screamin’ Eagle product team has engineered a patent protected 4.155” Big Bore Cylinder that increases the internal bore but slips into the existing case bore without modification. When combined with the appropriate piston combination in the Screamin’ Eagle Stage III kits, these cylinders can increase the displacement of your Milwaukee-Eight engine from 117CI to 122CI.
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