89" Low Compression Sidewinder Big Bore Cylinder and Piston kit  for 1986-'16 HD<sup>®</sup> Sporster<sup>®</sup> and  1994-'02 Buell<sup>®</sup> Models With S&S Super Stock<sup>®</sup> Heads - Natural Aluminum

89" Low Compression Sidewinder Big Bore Cylinder and Piston kit for 1986-'16 HD® Sporster® and 1994-'02 Buell® Models With S&S Super Stock® Heads - Natural Aluminum

Item #: 91-3207
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$921.95
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This is a replacement cylinder and piston kit for HD® Sportster® models with an S&S 89" Sidewinder® Kit and S&S Super Stock cylinder heads. The kit includes a set up S&S 3-5/8" bore Sidewinder cylinders, S&S 3-5/8" bore flat topped forged pistons, head gaskets, base gaskets, and exhaust gaskets. The pistons in this kit are the low compression type with yields 9.5:1 compression with S&S Super Stock cylinder heads.

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Pistons in this kit are designed for the combustion chamber of S&S Super Stock cylinder heads and are not compatible with stock heads.