Harley-Davidson Twin Cam Crankcases

Harley-Davidson Twin Cam crankcases














Harley-Davidson Twin Cam crankcases

Harley-Davidson Twin Cam crankcases

Harley-Davidson Twin Cam crankcases

These crankcases are available as Twin Cam A to fit 06 up Dyna and 07 up FL, as well as Twin Cam B to fit 07 up Softails. They are already bored to take the Harley-Davidson Screaming Eagle 4.060" bigger bore cylinders. We use these cylinders in our own HQ113 and HQ120 performance upgrades,and capacity is determined by crankshaft stroke.

These cases come with offset piston oilers for the 4 5/8 stroke crankshaft used in the 120. For the 113, which uses the 4 3/8 stroke, we replace the oilers with those used in the stock Twin cam 88 and 96. Torrington full complement cam bearings are already fitted, but we replace the left hand crankshaft roller bearing with our Timken bearing conversion for better crankshaft support and reliability.




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