This Big Bore Kit lets you increase the displacement of your Twin Cam 96™-equipped model from 96 cubic inches (1584cc) to 103 cubic inches (1690cc).
- Black highlighted
- Includes big bore cylinders, big bore flat top pistons and rings, high-flow air cleaner with one-piece back plate, top end gasket kit, and heavy duty clutch spring
- A high performance clutch spring is included to provide the additional clutch capacity required by the extra torque
- Requires separate purchase of primary cover gasket
- Street compliant when used with stock mufflers
- All EFI-equipped models require dealer-installed ECM calibration download or use of tunable Screamin' Eagle® Street Tuner Kit (priced separately)
- Recalibration is required for proper installation, See Dealer for details, Labor cost not included
- 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 all '07 Twin Cam and '08-'11 Softail® models equipped with a Twin Cam 96™ engine. Installation requires separate purchase of Primary Cover Gasket. Cam Drive Retention Kit P/N 25566-06. Cam Spacer Kit P/N 25928-06 is recommended. All models require ECM calibration for proper installation.
- Dyna Super Glide FXD
- Street Bob FXDB
- Dyna Super Glide Custom FXDC
- Dyna Low Rider FXDL
- Dyna Wide Glide FXDWG
- Heritage Softail Classic FLSTC
- Fat Boy FLSTF
- Softail Deluxe FLSTN
- Softail Springer Classic FLSTSC
- Softail Standard FXST
- Night Train FXSTB
- Softail Custom FXSTC
- Softail Deuce FXSTD
- Road King FLHR
- Road King Classic FLHRC
- Road King Custom FLHRS
- CVO Road King FLHRSE3
- Electra Glide Standard FLHT
- Electra Glide Classic FLHTC
- Ultra Classic Electra Glide FLHTCU
- CVO Ultra Classic Electra Glide FLHTCUSE2
- Street Glide FLHX
- Road Glide FLTR
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- These Screamin' Eagle® products are 50-State U.S. EPA compliant for sale and use on all applicable vehicles, including those that are pollution controlled. See Genuine Motor Parts and Accessories or Screamin' Eagle Accessories catalog for fitment information. Screamin' Eagle Performance products are intended for the experienced rider only.
Installation of automatic or manual compression releases on large displacement engines is highly recommended.
Dealer Install RecommendedYes
Warranty1 year limited warranty – Go to www.h-d.com/warranty for full details
Requires ECM CalibrationYes
Sold in UnitEach
In The BoxBig bore cylinders, big bore flat top pistons and rings, high-flow air cleaner with one-piece back plate, top end gasket kit, and heavy duty clutch spring
Sold SeparatelyPrimary cover gasket
Upgrade Stage LevelStage III
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