84" 86" or 88" 3-7/16" Bore Cylinder and Stroker Piston Kit for 1966-'84 HD<sup>®</sup> Big Twins - Gloss Black FInish
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84" 86" or 88" 3-7/16" Bore Cylinder and Stroker Piston Kit for 1966-'84 HD® Big Twins - Gloss Black FInish

Item #: 91-9017
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$1,249.95
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This 3-7/16" bore cylinder and piston kit can be used to build 84", 86", or 88" stroker engines, or the replace the cylinders and piston in an engine with an existing S&S® stock bore stroker kit. Kit includes S&S 3-7/16" bore high tensile cast iron cylinders, 3-7/16" bore forged stroker pistons with rings and wristpins, head gaskets, S&S stainless steel head bolts with washers, base nuts, base gaskets. This kit can be used in engines with 4-1/2", 4-5/8" or 4-3/4" stroke flywheels. 4-1/2" Stroke - 84" - 8.4:1 Compression 4-5/8" Stroke - 86" - 9.4:1 Compression 4-3/4" Stroke - 88" - 10.8:1 Compression

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Pistons in this kit are not intended to be used with stock flywheels. Very low compression and poor performance will result.