+ Reply to Thread
Results 1 to 12 of 12

Thread: Flow Bench Head Adapter and Valve Opener

  1. #1

    98Dak408's Avatar
    Supporting Vendor

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Detroit Area, Michigan
    Posts
    2,974

    Default Flow Bench Head Adapter and Valve Opener

    Decided to make a better head adapter for my flow bench. It is 24” long in order to better support a variety of cylinder heads, such as a longer straight 6 cylinder head. It also has removable o-ringed cylinder bore sleeves so I can easily change them depending upon what I may be working on. If I end up using it more, I can later modify the adapter with an indexed slider for quick repositioning of the head, depending upon which cylinder ports I am working on.



    Last edited by 98Dak408; 12-19-2022 at 04:54 PM.

  2. #2

    98Dak408's Avatar
    Supporting Vendor

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Detroit Area, Michigan
    Posts
    2,974

    Default

    So far so good. Now to make the quick-change adjustable valve opener.


  3. #3

    98Dak408's Avatar
    Supporting Vendor

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Detroit Area, Michigan
    Posts
    2,974

    Default

    Finished the valve opener. I made three different length extension shafts for versatility. It will bolt to either a 1/4" or 5/16” valve cover bolt holes. This should make things quicker and easier.







    Last edited by 98Dak408; 01-04-2023 at 02:37 AM.

  4. #4

    Default

    What did the heads flow?

  5. #5

    98Dak408's Avatar
    Supporting Vendor

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Detroit Area, Michigan
    Posts
    2,974

    Default

    I don't know yet. I just finished the valve opener over the weekend. The valve guides in the heads are too tight, and I need to ream/hone them, so the valves move more freely in the guides. Most all aftermarket heads I have worked on, aluminum or cast iron, usually have some tight valve guides.

    Edit: I have driven the bronze guides in-and-out which can also distort the ID of the guide.
    Last edited by 98Dak408; 01-04-2023 at 02:35 AM.

  6. #6

    JDreamR/T's Avatar
    I gots to have mo'par-ts!

    Status
    Offline
    Join Date
    Oct 2009
    Location
    Long Island, NY
    Posts
    1,197

    Default

    Very cool stuff Richard, looking good! I also am curious to see how the setup all checks out. What are your goals/plans for these heads?
    1999 R/T CC Flame Red (what's left of the paint)
    //SHAKER// 408 Forged // TKO600 5spd // Spintech-Mids // HiPoTek 106 LOPEYCAM // FRP Tuned //

  7. #7

    98Dak408's Avatar
    Supporting Vendor

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Detroit Area, Michigan
    Posts
    2,974

    Default

    Those heads are going to go on my 408. While I may take it to the strip for fun occasionally, it is basically a street toy, and more suited to road racing. So, I want the peak hp around 6000-6200 rpm, with a max rev say around 6500. But I’ll probably start another topic for that. I did order some solid brass rod today in order to machine the pushrod inserts as you did with your heads. This should give me a little more minimum cross section area, but that only becomes a restriction in the higher rpm range. Got to do some testing and go from there to iron things out.

  8. #8

    Default

    Nice Rich
    You gonna use a cam in the 240-248 range?
    I think I'd bump the lsa to 112-114.

    Geez, I wish you'd warm up heads commercially but that might entail too much of start up coinage.

  9. #9

    JDreamR/T's Avatar
    I gots to have mo'par-ts!

    Status
    Offline
    Join Date
    Oct 2009
    Location
    Long Island, NY
    Posts
    1,197

    Default

    Quote Originally Posted by 98Dak408 View Post
    ...I did order some solid brass rod today in order to machine the pushrod inserts as you did with your heads. This should give me a little more minimum cross section area, but that only becomes a restriction in the higher rpm range. Got to do some testing and go from there to iron things out.
    Excited to hear how it all goes! Happy New Year Richard!
    1999 R/T CC Flame Red (what's left of the paint)
    //SHAKER// 408 Forged // TKO600 5spd // Spintech-Mids // HiPoTek 106 LOPEYCAM // FRP Tuned //

  10. #10

    98Dak408's Avatar
    Supporting Vendor

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Detroit Area, Michigan
    Posts
    2,974

    Default

    Nice Rich
    You gonna use a cam in the 240-248 range?
    I think I'd bump the lsa to 112-114.

    Geez, I wish you'd warm up heads commercially but that might entail too much of start up coinage.
    Thanks! Still ironing things out.

  11. #11

    98Dak408's Avatar
    Supporting Vendor

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Detroit Area, Michigan
    Posts
    2,974

    Default

    Excited to hear how it all goes! Happy New Year Richard!
    Thanks James! Same to you!

  12. #12

    98Dak408's Avatar
    Supporting Vendor

    Status
    Offline
    Join Date
    Jan 2009
    Location
    Detroit Area, Michigan
    Posts
    2,974

    Default

    And, the intake side of things.


+ Reply to Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •