S&S CYCLE Big Bore Cylinder Kit — 107 cu in, 3.937 in bore, 4.375 in stroke – 07-17 Dyna, 07-16 Touring, 07-15 CVO, 09-16 Trike, 07-17 Softail
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SELECT YOUR VEHICLE TO VERIFY THE FITMENT
Excellent performance gains with stock heads.
Includes cylinders, pistons, rings and a full gasket set; professional installation required.