BHM107-3 Bullet Twin Cam Piston BHM107FT Bullet Twin Cam Piston Our Price: $350.00 Our Price: $350.00 3cc Domed 107 cu/in 10.75:1 Compression Ratio 3.937" bore Twin Cam HD Superbly machined and inspected performance piston. Made from 2618 forged and heat treated alloy. Held to the most detailed inspection and tolerances. By today's standard the Best piston On The Planet ! Enjoy forced pin oilers, advanced "Cam and Barrel" skirt profiles. The smoothest, flattest ring grooves humanly possible. Flat Top 107 cu/in 10.25:1 Compression Ratio 3.937" bore Twin Cam HD Superbly machined and inspected performance piston. Made from 2618 forged and heat treated alloy. Held to the most detailed inspection and tolerances. By today's standard the Best piston On The Planet ! Enjoy forced pin oilers, advanced "Cam and Barrel" skirt profiles. The smoothest, flattest ring grooves humanly possible. BHM107-6 Bullet Twin Cam Piston Our Price: $350.00 107 cu/in with 6cc Dome cu/in 11:1 Compression Ratio 3.937" bore Twin Cam HD Superbly machined and inspected performance piston. Made from 2618 forged and heat treated alloy. Held to the most detailed inspection and tolerances. By today's standard the Best piston On The Planet ! Enjoy forced pin oilers, advanced "Cam and Barrel" skirt profiles. The smoothest, flattest ring grooves humanly possible.