KB913C005 Performance, 96"/103" to 110" Twin Cam piston kit. +.005"

Stepping up to a 110-inch big bore on a 2007 to 2017 Twin Cam requires a serious piston, and this KB Performance forged set is built for the job. Designed to convert 96 or 103-inch motors to a 4-inch bore, these +.005-inch oversized pistons feature a +13.3cc dish that maintains a 9.5:1 compression ratio with stock 85cc heads. They are compatible with various heads, including SE, MVA, and CVO versions. Note that these are not a simple bolt-in for OEM 4-inch conversion cylinders in stock cases; you will likely need to machine the crankcase to clear the piston skirts and the cylinder step. Like all KB forged kits, these use offset wrist pins and require specific orientation during assembly. Sold as a set, this kit is a professional solution for high-displacement builds.