KB913C030 Performance, 96"/103" to 110" Twin Cam piston kit. +.030"

This KB Performance forged piston kit allows for a massive 110-inch big bore conversion on 2007 to 2017 96-inch and 103-inch Twin Cam models. Sized at .030 inches over, these pistons feature a 4-inch bore and a +13.3cc dish, resulting in a 9.5:1 compression ratio when paired with stock 85cc heads. They are also compatible with 95cc chamber heads like the SE and MVA series. Because these pistons use a 4-inch bore, the crankcases must be machined to clear the cylinder sleeves and the piston skirts. Like all KB forged pistons, they feature offset wrist pins and must be installed in the correct front-to-rear orientation. Sold as a set, this kit provides the strength and displacement needed for a high-output Twin Cam build.