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Screamin' Eagle Twin Cam Stage III Kit- 103CI to 110CI

$2,149.95
Part Number: 92500035
Color: Black Highlighted
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Build a fast, reliable 110 cubic inch Twin Cam hauler without having to remove the motor from the chassis. This Stage III Street Performance Kit combines system-matched Screamin' Eagle® big bore cylinders, high compression pistons and performance cams and valve train components with the Original Equipment cylinder heads for a cost-effective boost in torque and performance. The exclusive bolt-on 4.0" cylinders are engineered with slim-wall spigots that slip into the factory crank case without any additional machining.

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Showing 1-5 of 14
Reviews
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  • FEATURED REVIEW
    7/4/2023
    2015 Street glide stage 3 !!!!!
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    If you're thinking about upgrading your twin cam. This is the way to go my SG 103ho got 92hp/120torque.. I basically got a new motor and it runs fantastic. Go to Gator Harley Leesburg fla. If you want it done right. The staff treat you right and it's a nice store.
    Rocky - Zephyrhills Fla - Motorcycle: Flhx SG
  • FEATURED REVIEW
    2/2/2022
    SCREAMIN' EAGLE TWIN CAM STAGE III KIT- 103CI TO 1
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    Just installed on my 2016 FLHXS a couple months age. Was able to put 600 miles on before snow hit. LOVE it! Smoother, great usable power and only slightly louder valvetrain noise. Not too noisy, but I will install adjustable pushrods down the road. I do have wide angle oxygen sensors with Harley's autotune unit, which also works great! Initial tuning done with Harley SERT. read more.
    Roger - Denver,CO - Motorcycle: 2016 FLHXS
    • Still loving this setup! I have over 7,000 miles on the build and it runs great - mileage droped to 43 mpg from 48 mpg. I did install solid lifters and am very happy with engine noise level.
      Roger - Denver, CO
      8/18/2024
  • FEATURED REVIEW
    8/12/2021
    Good Kit
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    Very happy with this upgrade; you really notice a difference in all gears especially in 6th gear for passing or going up steep climbs.
    OldHog - Canada - Motorcycle: 2009 Harley softail custom
  • FEATURED REVIEW
    10/2/2020
    Any one have the cylinder part #'s ?
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    I have the 103 stage 4 kit and looking to just go to the bigger bore ,called dealers they just want to sell me another kit , all I need are the 110 cylinders and pistons . Have 64,000 miles on my high compression 103 kit and looking for slightly lower compression with bigger bore. Thanks
    Norton - Maryland - Motorcycle: 2012 FLHTK
  • FEATURED REVIEW
    7/24/2020
    Great bolt on kit for Torque
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    Had this installed on my 14 FLHXS about 2k miles ago. I took others advice and installed "rocker lockers" which significantly reduced the top end noise. Since I do a lot of highway this kit allows for 6th gear "roll on" passing with out down shifting. As a bonus, the exhaust sounds better too! see the attached dyno sheet. I got a peaky 126TQ and 96HP with D read more.
    • User review image
    DANG - Florida - Motorcycle: FLHXS
Showing 1-5 of 26
Q&A
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  • Question:
    3/13/2025
    can I use the stock 103 head or will i have to buy a new set
    will - okeechobee
  • Question:
    10/5/2024
    Can i use the kit as replacement for my 2016 FatBoy S FLSTFBS
    Draglo - TURKEY
  • Question:
    10/2/2024
    What else is needed to install this 103-110 kit on my 15 road glide
    Iholm - Franklin N.H.
    • Answer:
      Hello, Requires separate purchase of Cam Drive Retention Kit P/N 25566-06. Cam Spacer Kit P/N 25928-06 is recommended. Twin-Cooled models require separate purchase of model-specific head gaskets. All models require recalibration with Screamin' Eagle® Pro Street Tuner (sold separately) or dealership installed Screamin’ Eagle calibration. read more.
      hockeydad
      Helpful?
  • Question:
    6/1/2023
    Will the 58mm throttle body work with this kit
    Rocky - fla
  • Question:
    12/5/2022
    Will this work on a stage 1 2009 roadglide 96in
    Shyguy - Ky
    • Answer:
      Shyguy, Screamin' Eagle Twin Cam Stage III Kit- 103CI to 110CI Part Number: 92500035 does not fit your motorcycle. The available performance kits for your motorcycle are shown on harley-davidson.com if you search by your year and model. Thank you

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Screamin' Eagle Twin Cam Stage III Kit- 103CI to 110CI