106-0434 96" to 103" big bore pop-up piston kit. +.010"

For riders looking to breathe new life into a 2007 to 2017 96-inch Twin Cam, this S&S 103-inch conversion piston kit is a proven performer. These are +.010" oversize forged pistons featuring a 5cc pop-up dome, designed to maintain the same weight as your stock pistons while increasing displacement. When used with stock heads, you can expect a 10.1:1 compression ratio. This kit is compatible with both S&S and stock cylinder heads and does not require crankcase boring. Sold as a set, the package includes the pistons, rings, wrist pins, and clips. It is a reliable way to gain significant displacement and power without a total engine teardown.