Screamin' Eagle Twin Cam Conversion Kit - 103CI to 110CI

Part Number 92500033


Finish / Color: Black Highlighted



Bring your Twin Cam motorcycle up to the same 110 cubic inch displacement and power output as the CVO™ Screamin' Eagle® models without expensive machining or removing the engine from the chassis. This street compliant kit combines the proven SE-255 cams and cylinder heads of the CVO™ model with exclusive Screamin' Eagle® bolt-on 4.0" cylinders and system-matched pistons to deliver high torque and reliable everyday performance.

  • Black highlighted
  • Automatic compression release-equipped cylinder heads and the flat top forged pistons combine to develop a 9.3:1 compression ratio for easy starting
  • Screamin' Eagle® lifters ensure quiet reliable valve train operation
  • Includes SE 4.0" bolt-on cylinders, CVO™ 110 cylinder heads, SE-255 cams, forged 9.3:1 compression pistons and rings, heavy duty clutch spring, top end and cam cover gaskets, and high-capacity roller tappets
  • Separate purchase of cam spacers is recommended and requires separate purchase of appropriate Automatic Compression Release Wiring Harness
  • 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
  • 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 ’11-'17 Dyna® FXD, FXDB and FXDC models equipped with Shorty Dual Exhaust. Installation requires separate purchase of Muffler P/N 64895-09 (Qty 2). Also fits 50-state ’10-'17 FXDF and FXDWG models. FXDF and FXDWG models requires separate purchase of Mufflers P/N 65884-09 and 65886-09. All Dyna® models require separate purchase of Screamin’ Eagle® high flow cleaner. '10-'11 Dyna® models require ACR Harness P/N 70623-06. Does not fit models with engine cases that have been machined to accept large-bore cylinders. Also fits 50-state ’11-'17 Softail® models (except FLS, FLSS, FLSTFBS, FLSTN, FLSTSB, CVO™ 110 models or models with engine cases that have been machined to accept large-bore cylinders.). Requires separate purchase of Screamin’ Eagle® high flow air cleaner. ’11 Softail® models require ACR Harness P/N 70623-11. 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. '17 models require recalibration with Screamin' Eagle® Pro Street Tuner (sold separately).

Bike not listed?
Select your year and model to see all the parts that fit your bike.

  • Model
  • 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.
  • Dealer Install Recommended

  • Warranty

    1 year limited warranty – Go to for full details
  • Requires ECM Calibration

  • Sold in Unit

  • In The Box

    SE 4.0" bolt-on cylinders, CVO 110 cylinder heads, SE-255 cams, forged 9.3:1 compression pistons and rings, heavy duty clutch spring, top end and cam cover gaskets, and high-capacity roller tappets
  • Sold Separately

    cam spacers, compression release wiring harness
  • Upgrade Stage Level

    Stage IV
Bolt-On 110 Cubic Inch Street Performance Kit is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Gave Me the Torque I Wanted. I had this SE 110 Bolt On Kit installed at my local dealer during the month of Decmeber 2015 when there was 20% off on the kit and labor. This kit was for my 2011 Heritage which had the 96CI Motor. First time out, I could feel the extra torque that I wanted, I put 800 miles on it and decided it was time for the Dyno. Results....... 108.8 foot pounds of torque and 88 horse power, plenty for how I ride. My bike does have a Stage 1 Upgrade.
Date published: 2016-02-26
  • y_2018, m_2, d_26, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_PA-18-92500033, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_harleydavidson

will the 259E cams work with this kit?

also will 10:1 Pistons work with this kit along with the 259E cams?
Asked by: tatts55
Hi Tatts55, Using a 259E cam cannot be suggest as it is would not be compliant with H-D standards. We suggest using and only using the SE-255 cams as it would be EPA street-legal. Hope this helps!
Answered by: RowdyGrl79
Date published: 2016-12-05

Hello, have FXDL 2014, can I update my engine to 110' with this kit?

Asked by: Alexey

Can this 110 kit be installed on my 2013 103 Fat Boy 103ci without any machining necessary? Will any other accessories be necessary for install?

Asked by: KWin
Hi KWin, There is an instructions sheet link on the MORE INFO tab for you to view before purchasing this kit. You may also contact your local Harley-Davidson dealership and speak with a professional technician for more assistance. Thank you for your submission.
Answered by: IronRyder
Date published: 2017-10-16

Will the 110 kit work on my 96 c.i. ?

Asked by: fastfreddie
Hi Fastfreddie, Assuming you are referring to your 2011 FLHR, then no, you would need P/N 92500031. P/N 92500033 fits specific Dyna models. Thank you for your question.
Answered by: FXS78
Date published: 2017-06-06

do I need a larger throttle body ?

hi, I have an Australian delivery, cable throttle 2015 Heritage Softail Classic 103ci, NOT the 103HO with electronic throttle, do I need to upsize the throttle body to install this kit ?
Asked by: didav
  • y_2018, m_2, d_26, h_20CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_7
  • loc_en_US, sid_PA-18-92500033, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_harleydavidson

Recently Viewed

    Please Hold Your Iron Horses

    You've been sitting idle, so we've ended your session to protect your personal details.

    Continue as guest Sign in
    Online Exclusives

    You’ve been sitting idle, so your session will expire in

    Would you like to remain signed in and continue shopping?

    Yes, keep me signed in No, sign me out

    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.