Harley M8 Port & Polished Heads 128ci

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  • เผยแพร่เมื่อ 7 ธ.ค. 2022
  • A port and polish job done on some SE M8 heads for a 128ci build on a 2019 Harley Road Glide.
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    JCS Performance
    11 S 5th St
    McAllen, TX 78501
    (956)566-7437
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ความคิดเห็น • 21

  • @greghinchley6277
    @greghinchley6277 ปีที่แล้ว

    Interesting. I enjoyed learning from you!

  • @johnmacias01
    @johnmacias01 ปีที่แล้ว +2

    Man you guys are the real deal with a machine shop. Badazz

  • @trailerparkcryptoking5213
    @trailerparkcryptoking5213 ปีที่แล้ว +1

    Nice looking work and using Star parts means you know what tf your doing!

  • @wtf0101
    @wtf0101 6 หลายเดือนก่อน

    Nice👌

  • @chig9357
    @chig9357 ปีที่แล้ว

    cool!

  • @tommiller8714
    @tommiller8714 ปีที่แล้ว +2

    Nice video! About how many hours does it take produce a set of upgraded heads, starting with the stock heads? Thanks!

    • @jcsperformance2778
      @jcsperformance2778  ปีที่แล้ว

      It just depends on the job...some take a little more work than others

  • @whotruckingwithwaddie718
    @whotruckingwithwaddie718 3 หลายเดือนก่อน +1

    How much do you charge this will be perfect for my 128 build and what cfm did they flow ?

  • @chrisbrintnell3590
    @chrisbrintnell3590 ปีที่แล้ว

    What do they flow at 200 to 400 lift intake and exhaust 28 inches on a super flow

  • @5inchborespaceing
    @5inchborespaceing ปีที่แล้ว +1

    On your heads. Intake side only cut the throat 87% of valve area on m8 heads for all .500 and and up to .550 lift cams. Go 88% max on cams over .550 lift. Example on a 42mm valve cut the throat to 36.54mm.

    • @trailerparkcryptoking5213
      @trailerparkcryptoking5213 ปีที่แล้ว

      Do you have good ratios for the 103 TC heads? Good tech info!

    • @5inchborespaceing
      @5inchborespaceing ปีที่แล้ว +1

      @@trailerparkcryptoking5213 Don't go over 90 to 91% on 2 valve heads.

    • @trailerparkcryptoking5213
      @trailerparkcryptoking5213 ปีที่แล้ว

      @@5inchborespaceing what’s a typical percentage from the factory?

    • @5inchborespaceing
      @5inchborespaceing ปีที่แล้ว

      th-cam.com/video/qhsTQn0uUOQ/w-d-xo.html

  • @chrisbrintnell3590
    @chrisbrintnell3590 ปีที่แล้ว +1

    What do these heads flow iam a head grinderwith 55 years of racing head experience stock 114 heads with porting and stock kibble white valves at 600 lift intake is 345 cfm and the exhaust is 268 cfm if ported right your heads look to be to big witch means no velocity just volume I ran Air flow research for 18 years make them smaller and good luck

    • @jcsperformance2778
      @jcsperformance2778  ปีที่แล้ว

      Yes, you are correct. Thank you. We no longer flow heads.

  • @lionell247
    @lionell247 ปีที่แล้ว

    What valve grinder did you use?

  • @jackwillson8099
    @jackwillson8099 7 หลายเดือนก่อน

    You know those stem ,heights are way off lol