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List Price: $2,973.95
Our Price: $2,527.95
Most items ship within 1-2 business days

Product Details


This comprehensive kit provides a complete package of matched components that allow you to build a high performance 110ci Twin Cam. The unique Screamin' Eagle® 4.0" big bore cylinders are engineered to slip into the engine cases without case machining or modification, so the engine stays in the chassis during the build.

  • Includes 4.0" cylinders, SE CNC-Ported Cylinder Heads, matching 10.2:1 forged high compression pistons and rings, SE-259 cams, perfect-fit pushrods, high-capacity roller tappets, cam cover gaskets, heavy duty clutch spring, high flow fuel injectors
  • Also includes the SE 58mm Throttle Body with high flow fuel injectors
  • All EFI-equipped models require dealer-installed ECM calibration download or use of Screamin' Eagle® Street Tuner Kit (priced separately)
  • Recalibration is required for proper installation, See Dealer for details, Labor cost not included
  • Separate purchase of cam spacers is recommended
  • Requires separate purchase of accessory 58mm air cleaner and Cam Drive Retention Kit P/N 25566-06
  • When installed by an authorized Harley-Davidson® Dealer at the time of vehicle delivery, these kits do not impact the vehicle's limited warranty


Fits ’16-’17 Softail® and ’08-’13 Touring models. Cannot be installed on CVO 110 models, FLSS or FLSTFBS 110 models, or models with engine cases that have been machined to accept large-bore cylinders. Requires separate purchase of accessory 58mm air cleaner and Cam Drive Retention Kit P/N 25566-06. Cam Spacer Kit P/N 25928-06 is recommended. Models without automatic compression releases require installation of model specific Compression Release Kit and Wiring Harness.

Intermountain H-D Part#:


WARNING: Cancer and Reproductive Harm -