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Technical Three 2" SU's on a 302 GMC straight six

Discussion in 'Traditional Hot Rods' started by G85, Jul 2, 2024.

  1. 31 Coupe
    Joined: Feb 25, 2008
    Posts: 431

    31 Coupe
    Member

    Unfortunately the cage is the legal part, 1-5/8" x 1/8" wall. The main frame is 1-1/8" diameter and 1-1/4" is the minimum now.
    Back in the early days some six cylinder dragsters and altereds were only 1" diameter.
    Let's leave this thread to the original subject matter.
     
    Last edited: Jul 7, 2024
  2. The top plate can be swapped out for a blower plate. Easier to add the relief while designing and building than later.
     
  3. ROADSTER1927
    Joined: Feb 14, 2009
    Posts: 3,208

    ROADSTER1927
    Member

    I have a setup of a Jaguar six and manifolds. I can take a picture tomorrow if you are interested. Gary
     
  4. Harv
    Joined: Jan 16, 2008
    Posts: 1,253

    Harv
    Member
    from Sydney

    Thankyou. Clever forward thinking in that build.

    Cheers,
    Harv
     
  5. Tim
    Joined: Mar 2, 2001
    Posts: 18,425

    Tim
    Member
    from KCMO

    I’m gonna be honest I skipped reading every single reply to this but here is my buddy Chris’s gmc 6 with a brace of SU’s. He built the intake and exhaust and along with the rest of the car and got it in the road this spring.

    snagged some photos and still shots of video from his Instagram to share what I could see of the intake etc. IMG_5078.jpeg IMG_5079.jpeg IMG_5080.jpeg
     
    Sharpone likes this.
  6. G85
    Joined: Aug 26, 2017
    Posts: 6

    G85

    D Russ and Tim,

    Thanks for those photos, the tunnel ram seems like a good option. pretty sweet looking. Gary, if you get a chance, I'd appreciate any photograph you can get.

    Thanks to all once again.
     
    Sharpone likes this.

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