- Designed for use with 4-3/8″ stroke engines, these 3-7/8″ forged pistons can be combined with different heads depending on your horsepower and torque requirements
- Kit includes pistons, rings, pins and clips
Fits Harley-Davidson ’99-later Twin Cam models equipped with 3-7/8″ cylinders. ’99-’06 models also require Screamin Eagle 4-3/8″ Stroker Flywheel and Rod Assembly. Does not fit Twin-Cooled models. All EFI models require ECM calibration* (priced separately). For race application only.











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