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Screamin' Eagle Milwaukee-Eight Engine CNC Ported Cylinder Heads

$2,153.00
1.67
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See 3 reviews
Part Number: 16500512
Colour: Black Highlighted
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Designed in conjunction with the system-matched components of the Screamin’ Eagle® Milwaukee-Eight® Stage IV Performance Kit, these CNC-Ported Cylinder Heads have been meticulously machined to optimize air/fuel flow and velocity. Starting with a unique Screamin' Eagle® cylinder head casting, the Screamin’ Eagle® team has dedicated countless hours of computer simulation and flow bench testing to maximize the flow through the intake and exhaust ports.

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Showing 1-3 of 3
Reviews
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  • FEATURED REVIEW
    1/18/2021
    careful
    when running larger motors(128ci) with .530 lift and 143tq
    mad rider - calif - Motorcycle: softail
  • FEATURED REVIEW
    12/3/2020
    Dissapointment all around
    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
    Fourteen hundred bucks...4 months of backordering to finally get them and now they no longer have the "SE" etched on the left side of the heads and quite literally more milling flash down in the holes and ports than I've ever seen. Obviously NO inspection or quality control. Dealer says "you get what you get, we can't even get another set now" Emails to motor company get no response. Perhaps the worst level of customer service from a company that I've ever experienced. I guess the two or three cents that Harley saved by no longer stamping the SE must look good to the bottom line for a sneaker executive. No different than cutting back to only one key and fob on the 20's, elimination of heel shifter and actuating vents in the fairings on touring models. read more.
    BigCheez - Howell, NJ - Motorcycle: FLHXS
    • You can get a drama toll and etch the SE on all your parts, that will make your bike really fast.
      Bama - Maryland
      3/20/2025
    • You forgot no rear footpegs either...but they will sell you a Chinese set for 400 bucks.
      Hound - Indiana
      11/27/2023
    • I personally don't care to advertise screaming eagle on my bike. Your way better off getting stage 3 cnc heads by sending your heads into Zippers or quality local shop. That's probably what your dealer did to and had stage 1 done.
      Bama - Maryland
      3/5/2023
    • It's crazy these are the same price as the Stage 4 heads that you're referring to.
      Wesley - Houston
      1/26/2023
    • that's a shame i sent my stock 114 heads out to get ported for half the price
      buzz - md
      12/19/2020
    • These aren't the "extreme" stg 4 heads. You prob got the first generation stg 4 heads that's why there's no SE etched on them. Your review is attached to the older heads.
      Dont matter - No where
      12/10/2020
  • FEATURED REVIEW
    9/25/2019
    comparison
    using your own stock heads and cnc by others is cheaper and will produce better performance matching up head work with hpi 62mm TB and manifold will out flow and perform much better
    biker brian - MT. CTR, CA - Motorcycle: heritages for ever
    • M8 heads are cheap on Ebay as well if you just buy a set have them done ,that way your bike isn't down while waiting for heads to get done ,then sell yours on Ebay or wherever.
      Bama - Maryland
      3/5/2023
    • Agreed I did the same thing and saved huge $$$ and got better results
      TVM1 - Summerfield Florida
      12/12/2020
    • agree
      buzz - maryland
      8/9/2020
Showing 1-5 of 11
Q&A
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  • Question:
    1/16/2025
    Can I put them on my 107-119 Stage III kit?
    Lorenzo - Italy
    • Answer:
      Hello Lorenzo, Screamin' Eagle Milwaukee-Eight Engine CNC Ported Cylinder Heads part number 16500512 are replacement cylinder heads for Air/Oil Cooled '18-'22 Softail® and ’17-later '22 and CVO™ models equipped with Screamin’ Eagle® Milwaukee-Eight® 114 or 117ci Stage IV Kits. Thanks blairmke read more.
  • Question:
    8/17/2024
    Will these heads work on a 2019 flhx m8 107 to s
    Dirty money - honesdale pa
    • Answer:
      These are replacement cylinder heads for Air/Oil Cooled '18-'22 Softail® and ’17-later '22 and CVO™ models equipped with Screamin’ Eagle® Milwaukee-Eight® 114 or 117ci Stage IV Kits. All models require ECM calibration with Screamin’ Eagle® Pro Street Tuner for proper installation. See Dealer for details. read more.
      SE Performance
      Helpful?
  • Question:
    8/25/2023
    Would these go on top of an S
    Gaines - Iowa
    • Answer:
      Hello Gaines. Part number 16500512 fitment: Replacement cylinder heads for Air/Oil Cooled '18-'22 Softail® and ’17-later '22 and CVO™ models equipped with Screamin’ Eagle® Milwaukee-Eight® 114 or 117ci Stage IV Kits. Thanks blairmke
  • Question:
    2/23/2023
    I have a 114-117" stage 4 kit on my 2019 tk. Can use these internals (especially the cnc ported heads) and put 131 jugs and pistons on? Also the part number on the 117 build heads is pn16500379. The 131 kit heads pn16500748. Any difference? Many thanks
    WFOharleydavidson - Orillia ont
    • Answer:
      Hello WFOharleydavidson, The 131 runs different size valves plus you will have a very hard time tuning your bike. Gigglesthehelper
      Gigglesthehelper
      Helpful?
  • Question:
    4/2/2022
    What is the CC of the combustion chamber of these heads?
    ThisislivinMD - Maryland
    • Answer:
      They are the same cc as the stock heads. The heads for the 128/131 stg iv kits have a larger cc chamber.
      Hoseclamp
      Helpful?
      • Answer:
        Looking at the 117 stg 3
        Hoseclamp
        Helpful?
      • Answer:
        ThisislivinMD, The CC of the Screamin' Eagle Milwaukee-Eight Engine CNC Ported Cylinder Heads (PA-18-16500512) is not available. Thanks.
        RowdyGrl79
        Helpful?
Screamin' Eagle Milwaukee-Eight Engine CNC Ported Cylinder Heads