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Screamin' Eagle Milwaukee-Eight Extreme Ported Cylinder Heads

$1,649.95
Part Number: 16501332
Color: Black Highlighted
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This Center-Cooled generation of Extreme Ported Cylinder Heads has been meticulously designed to help optimize air/fuel flow and velocity. Building on the previous Oil/Twin-Cooled generation of CNC-Ported Milwaukee-Eight® Cylinder Heads, the Screamin' Eagle team refined the intake and exhaust ports based on extensive racing efforts to help maximize the flow of high-velocity air through 2mm larger (42mm intake/34mm exhaust) valves than the Original Equipment heads and fully machined the combustion chamber to help optimize combustion efficiency.

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    • Question:
      6/10/2025
      Will these heads work on a stock 2025 touring with a 117 ?
      Chris - Md
      • Answer:
        Yes but youll lose some compression, im putting them on stock 117 with a cam and a turbo
        Bostonbaggers
        Helpful?
    • Question:
      6/5/2025
      Is it possible to retrofit these heads on a big inch 1st gen oil cooled m-8? Delete the plastic oil crossover line, and plug the line straight in the head and drain out the rear. The only issues I see are a reversed flow and oil instead of water. Thx
      Big D - Houston
      • Answer:
        Wouldnt be the smartest use of time… buy the ones made for the gen 1
        Bostonbaggers
        Helpful?
        • Answer:
          Hello, Due to the nature of your technical question, please consult with your local dealership. Thanks
    • Question:
      4/27/2025
      What are the cc size for the combustion chamber
      Menace - New Jersey
      • Answer:
        Hello Menace, Please contact your local dealership for assistance. Thanks blairmke
    • Question:
      1/26/2025
      what CC are these heads?
      RickyG512 - London, UK
      • Answer:
        Thats a good question are they 90 or 89 or 93 need to no for compression.
        • Answer:
          Hello RickyG512, Oil/Twin-Cooled generation of CNC-Ported Milwaukee-Eight® Cylinder Heads, the Screamin' Eagle team refined the intake and exhaust ports based on extensive racing efforts to help maximize the flow of high-velocity air through 2mm larger (42mm intake/34mm exhaust) valves than the Original Equipment heads and fully machined the combustion chamber to help optimize combustion efficiency. Hope this helps Thanks read more.
    • Question:
      1/25/2025
      What's the maximum lift cam these heads can take?
      RickyG512 - London
      • Answer:
        580, if more is needed check Moonshine Horse Power, premium power at premium price
        Bostonbaggers
        Helpful?
        • Answer:
          I was searching for this answer also. I have a dealership tell me 540. Then someone that is more into performance said 570. Spend a few dollars more and get better springs. Star Racing, S

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