S&S CYCLE Big Bore Cylinder Kit — 3.927" bore, 106" displacement, 4.375" stroke, Black – 07-17 Dyna, 03, 07-16 Touring, 07-15 CVO, 10-16 Trike, 07-17 Softail
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Complete Big Bore cylinder kit with cylinders, pistons, rings and gaskets; easy installation and made in the USA. Professional installation recommended.