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Featured Projects 60's 3W Build

Discussion in 'The Hokey Ass Message Board' started by hotrodfab32, Jun 1, 2018.

  1. Hot Rods Ta Hell
    Joined: Apr 20, 2008
    Posts: 3,435

    Hot Rods Ta Hell
    Member

    Magnificent workmanship. Been a blast to watch your build. Machine work, design and welding are all top notch. I love that you're fabbing components such as the pedals, alternator bracket, etc instead of catalog ordering.
     
    SEAAIRE354 and brad2v like this.
  2. goldmountain
    Joined: Jun 12, 2016
    Posts: 203

    goldmountain

    Great looking alternator mount. Going to steal that idea.

    Sent from my SM-T350 using The H.A.M.B. mobile app
     
  3. Great build keep the updates coming.
     
  4. hotrodfab32
    Joined: Mar 23, 2010
    Posts: 33

    hotrodfab32
    ALLIANCE MEMBER

    Headers are next. They are built out of 304 S.S. 1-3/4 16 ga. tubing and 2-1/2" collectors. I drew flanges for the engine and collectors up in a CAD program and then sent the file to a shop to have them water jet cut from 3/8" SS. The tubes needed to be kept tucked close to the engine to try to keep them as far away from the hood sides as possible. Tight radius bends were used at the flanges and standard ones everywhere else..

    The left side is pretty straight forward. It has to clear the oil filter and pedal assembly.
    IMG_3792 (1).JPG
    Three down, one to go.
    IMG_3794.JPG
    The inside of the tubes are purged with Argon while welding them together so with 100% penetration the weld looks as good on the inside. After the tubes are welded the weld can be ground down without weakening them. The surfaces are then blended.
    IMG_3846.JPG

    A DA, Flap wheels and 3M pads are used to finish them. I wanted a natural finish that will darken some after they are used.
    IMG_3848.JPG

    Left side finished.
    IMG_3850.JPG
    They ended up being tucked in very tight.
    IMG_4077.JPG

    I took more pictures when I was doing the right side. I'll get it on here as soon as I can.
     

    Attached Files:

    Last edited: Jul 9, 2018 at 4:58 PM
    enloe, GordonC, kidcampbell71 and 9 others like this.
  5. DDDenny
    Joined: Feb 6, 2015
    Posts: 8,833

    DDDenny
    Member
    from oregon

    Nice, those will look good when they turn that goldish shade.
     
  6. Thanks for sharing the build details....fantastic craftsmanship.
     
    kidcampbell71 and greaser like this.
  7. Happydaze
    Joined: Aug 21, 2009
    Posts: 535

    Happydaze
    ALLIANCE MEMBER

  8. hotrodfab32
    Joined: Mar 23, 2010
    Posts: 33

    hotrodfab32
    ALLIANCE MEMBER

    The right side was tight because of the starter and pinched rails. The tubes were kept as far away from the starter and tucked in away from the hood as space would allow.
    IMG_4006.jpg

    The tubes wouldn't fit around the starter 2X2 so they were 3 wide going under it to maintain ground clearance. A 16 ga. plate had four 1-3/4 holes cut in it. One side was bent 90 then it was clamped to the frame where the collector needed to be for a fixture to align the tubes. Once they are all done they are marked 1/2" longer than the plate and cut.
    IMG_4005.jpg

    This is the second tube. 9 Pieces. Manifolds next time.
    IMG_3967.jpg

    All the tubes finished, cut to length and ready to be reassembled.
    IMG_4031.jpg

    The tubes are put back together. The fixture is still in place. Quite a bit of starter clearance considering the amount of stuff packed in there. At this point they were tacked to the flange and a filler piece was welded on the collector end in the middle of the four tubes
    IMG_4037.jpg

    The flange is then bolted to an I-beam to help keep it straight while welding the flange. The hose on the end is argon to purge out and keep out oxygen while welding.
    IMG_4040.jpg
    I decided it would be easier to weld the flange on the collector before welding it on the header. Both flanges welded.
    IMG_4043.jpg

    Collector tacked. Argon will be hooked back up to finish welding. You can see how tight everything has to be.
    IMG_4044.jpg

    I'm glad I did it but don't know if I'll ever do it again.
    IMG_4059.jpg
    These ended up tucked in the same amount as the other side.
    IMG_4067.jpg
    IMG_4566.jpg
     

    Attached Files:

    Last edited: Jul 10, 2018 at 12:03 PM
    Stock Racer, enloe, GordonC and 10 others like this.
  9. DDDenny
    Joined: Feb 6, 2015
    Posts: 8,833

    DDDenny
    Member
    from oregon

  10. alchemy
    Joined: Sep 27, 2002
    Posts: 12,020

    alchemy
    ALLIANCE MEMBER

    Are the tubes equal length, or just close? They look like they were CAD designed and mandrel bent.
     
  11. revjimk
    Joined: Nov 30, 2010
    Posts: 87

    revjimk
    Member
    from Denver

    I was gonna comment on the beautiful fabrication of headers & then looked at the rest of this thread... the whole thing is magnificent!
    I wanna be your apprentice....
     
  12. hotrodfab32
    Joined: Mar 23, 2010
    Posts: 33

    hotrodfab32
    ALLIANCE MEMBER

    They are close to the same length.
     
  13. GordonC
    Joined: Mar 6, 2006
    Posts: 938

    GordonC
    ALLIANCE MEMBER

    I always wondered how the pipes get welded around them as they come into the collector? Are they not welded all the way around the tube? Or only as far as can be reached from the outside? Absolutely beautiful work too!
     
  14. hotrodfab32
    Joined: Mar 23, 2010
    Posts: 33

    hotrodfab32
    ALLIANCE MEMBER

    A piece called a star is welded in the center of the tubes on the end to seal the area between them. Then each pair of tubes are welded to each other on their face and about an inch between them. The collector is slid over them about a half inch and when its welded it is sealed to the weld between them.
    IMG_4044 crop.jpg

    IMG_4067 crop.jpg
     
  15. enloe
    Joined: May 10, 2006
    Posts: 6,897

    enloe
    Member
    from east , tn.

  16. piker
    Joined: Aug 18, 2007
    Posts: 179

    piker
    ALLIANCE MEMBER

  17. Malcolm
    Joined: Feb 9, 2006
    Posts: 7,232

    Malcolm
    Member
    from Nebraska

    I just read through this whole thread. Thank you for documenting your Hot Rod build. Incredible work and details!
     
  18. Super Streak
    Joined: Nov 22, 2011
    Posts: 223

    Super Streak
    Member
    from Florida

    That build is just kicking ass perfection. I'm glad it's not the typical 350 sb which you see all the time. Awesome work !!!
     
  19. Stock Racer
    Joined: Feb 28, 2010
    Posts: 470

    Stock Racer
    ALLIANCE MEMBER

    To repeat what many have said, WOW! That is the most incredible fab skills I have seen. The headers are insane!
     

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