The Stage II Big Bore Kit provides the parts you need to increase the horsepower of your EFI-equipped model.
Legal in all 50-states
Increases the displacement of your Twin Cam-equipped model from 96 cubic inches (1584cc) to 103 cubic inches (1690cc)
Includes Stage II (SE-255) cams, Big Bore cylinders, Big Bore flat top pistons, clips, and a Stage I Air Cleaner Kit with one-piece back plate, integral breathers, a high-performance clutch spring, all mounting hardware, and gaskets
Separate purchase of cam spacers is required
All EFI-equipped models require ECM calibration* (priced separately)
49-state kits include catalyst mufflers or headers, and California kits are street legal on California pollution controlled vehicles when used with Original Equipment mufflers
- These Screamin' Eagle® products are street-legal for sale and use on pollution-controlled vehicles in the state of California.
- These Screamin' Eagle® products are 50-state street-legal for sale and use on all vehicles, including those that are pollution controlled.
All EFI-equipped models require ECM calibration (priced separately). Recalibration is required for proper installation, and will allow engine to rev to 6200 RPM. See Dealer for details. Labor cost is not included.