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Hot Rods How many hours of grinding to make a hot rod.?

Discussion in 'The Hokey Ass Message Board' started by iwanaflattie, May 26, 2025.

  1. Same question applies to customs...I feel like I've been grinding metal all my life??¿
     
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  2. TerrytheK
    Joined: Sep 12, 2004
    Posts: 1,530

    TerrytheK
    ALLIANCE MEMBER

    Well, I'd say that might depend on how bad you are at welding... :eek:;)
     
  3. Mr48chev
    Joined: Dec 28, 2007
    Posts: 35,475

    Mr48chev
    ALLIANCE MEMBER

    Well you are a great welder or a good grinder.
    Otherwise it probably depends on what you started with and what condition it was in when you started. The frame that I have for my redo of my 48 just needs sandblasting and not much more but the old frame that is under it now would need a lot of hours with a flap disk to get up to what I want as would some other pieces for it. Then don't even start up adding up the grinding and smoothing on what body mods I have going on.
     
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  4. squirrel
    Joined: Sep 23, 2004
    Posts: 58,958

    squirrel
    ALLIANCE MEMBER

    A lot.

    hard to put a number on it, aside from the number of worn out flap discs, cutoff wheels, grinding wheels, chop saw wheels, etc.
     
  5. TCTND
    Joined: Dec 27, 2019
    Posts: 697

    TCTND
    Member

    Yeah, my wife's friend, the massage therapist, was constantly complaining about the endless grinding noise produced by her neighbor, my friend the hot rodder.
     
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  6. hotrodjack33
    Joined: Aug 19, 2019
    Posts: 4,654

    hotrodjack33
    ALLIANCE MEMBER

    Yeah, my neighbors, that I've aggitated over the years, could probably answer that question better than I can
     
  7. Pete1
    Joined: Aug 23, 2004
    Posts: 2,262

    Pete1
    Member
    from Wa.

    It takes at least 200 hours to port and polish stress risers out on a flathead block.
    I would not make a guess on the rest of the car.
     
  8. gene-koning
    Joined: Oct 28, 2016
    Posts: 5,239

    gene-koning
    Member

    The grinding time depends on the original condition of the vehicle when you started on it, and how perfect it needs to be when you are "done" with it.

    The piles of junk I usually start with require a lot more grinding time to make them look like a car then most do, but then I'm not usually too concerned with perfection, so the grinding time on that end is usually a lot less the most.

    I was a welder in the automotive field for the last 28 years of my working life. I don't believe I have ever counted the hours of grinding required to get a job done, its always been part of the welding process. I can say that if your doing it right, there is usually a lot more grinding time then there is welding time, and most of that takes place before the welding machine is ever turned on.
     
  9. vtx1800
    Joined: Oct 4, 2009
    Posts: 1,864

    vtx1800
    ALLIANCE MEMBER

    Interesting question, I've spent a lot of today grinding, and not that much welding. Working on a unibody F100, I have to rebuild the torque box but first had to remove the bed floor, the rusted out torque box and the flanges spot welded to the body. Drilled a lot of spot welds, then instead of drilling the spot welds on the inner fender I just cut the bottom two inches off and welded in new material.....and then I ground and ground....lot of black crap was filtered by my nose hairs:(
     
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  10. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 14,835

    Bandit Billy
    ALLIANCE MEMBER

    When I build and fabricate, I often channel my inner Maya Angelou, "and still I grind"
     
  11. Onemansjunk
    Joined: Nov 30, 2008
    Posts: 467

    Onemansjunk
    Member
    from Modesto,CA

    My step grand kid tried to pull this shit on me. Laying this crap on me about grinding welds, makes it weaker. So I ask him, so you just bondo over the welds!
     
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  12. deathrowdave
    Joined: May 27, 2014
    Posts: 4,671

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    He is true about grinding of welds , never grind critical welds most any thing on a car , grind and finish it smooth . I have completed plenty I never touched on my cars and bikes and as many as I have worn out wheels on . Smoothing the surface and grinding into the surface are 2 things to define .
     
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  13. Slow down
    Joined: Jan 7, 2014
    Posts: 140

    Slow down
    Member

    Grinding & Grinding & Grinding I need to start with less rust IMG_1537.jpeg
     
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  14. Onemansjunk
    Joined: Nov 30, 2008
    Posts: 467

    Onemansjunk
    Member
    from Modesto,CA

    B4F25E1D-B48C-4EAF-8A7A-8E17CC227357.jpeg
    This was what I was doing at the time, boxing frame rails. I was at the grinding stage of the game . Remember when Boyd Coddington threw that kid and his car out of his shop for refusing to box his frame rails. Kid Fffukked himself out of a good deal, he and grandkid one and the same. Know it alls.
     
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  15. larry k
    Joined: Feb 23, 2009
    Posts: 593

    larry k
    Member

    The old “ bull pipe line welder “ that taught me how , always said you are just melting 3 pieces of metal together at the same time , and if you have to grind your welds for good looks , that makes you a grinder not a welder !!!
     
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  16. Onemansjunk
    Joined: Nov 30, 2008
    Posts: 467

    Onemansjunk
    Member
    from Modesto,CA

    My Old Boss told me, after looking at my deductions on my paycheck, “wouldn’t have been cheaper to just have run it off by hand?”.
     
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  17. Onemansjunk
    Joined: Nov 30, 2008
    Posts: 467

    Onemansjunk
    Member
    from Modesto,CA

    some how the child support part disappeared, oops.
     
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  18. jetnow1
    Joined: Jan 30, 2008
    Posts: 2,188

    jetnow1
    ALLIANCE MEMBER
    from CT
    1. A-D Truckers

    I spend a lot more time grinding than welding, but sadly at least as much after as before.
     
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  19. 1971BB427
    Joined: Mar 6, 2010
    Posts: 9,591

    1971BB427
    Member
    from Oregon

    Depends on too many things that differ build to build to put a number on it. My last build took 6-7 months to cut out and replace rotted metal before I even got to chassis and other mods, so a lot of grinding. Then more welding and grinding once I began the engine swap, suspension mods, etc.
     
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  20. GuyW
    Joined: Feb 23, 2007
    Posts: 683

    GuyW
    Member

    There is a theory that it takes 10,000 hours of dedicated effort to master a skill (piano virtuoso, boxer, whatever). It might apply to hot rodding as well....
     
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  21. grdra1
    Joined: May 20, 2013
    Posts: 606

    grdra1
    Member

    The angle grinder is the most used tool in my garage, lost count on how many have worn out, not having a guillotine, band saw or oxy (I do have a 275mm cold saw), means nearly everything gets cut, shaped or sanded with the grinder. My local steel shop is miles away and steel is so expensive now, so I usually turn any oversize material or scrap items into what I need. I also purchase cut of discs and grinding / flap discs in bulk and always have at least 100 of each in stock. Glen
     
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  22. Rickybop
    Joined: May 23, 2008
    Posts: 10,368

    Rickybop
    Member

    The time it takes or how many pounds of shavings? LOL

    I've got a lot ahead of me.
    It can wear out a compressor running a die grinder.
    And my ears.
    I bought this for lighter stuff.
    I'm gonna try it out today.
    0527251229.jpg
     
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  23. Model A Gomez
    Joined: Aug 26, 2006
    Posts: 1,804

    Model A Gomez
    Member

    In my case twice as long as I plan but that's everything on building a car. I heard the statement " decide how low it will take and how much it will cost then double it", that seems to hold true for me. I've got pretty good at grinding but I'm a sloppy welder and farm out anything critical.
     
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  24. surestar
    Joined: Aug 16, 2009
    Posts: 29

    surestar
    Member
    from canada

    You know what’s sad.....I can identify most all of those parts you have cut out to replace.
    AD CHEVROLET TRUCK
     
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  25. Grinding? As in metal, or the whole shebang? Metal is a job, until done to a certain point. The rest=Grinding?
    My buddies call and say what ya doing? Grinding in the garage?
    The garage/shop continues to be the daily grind....... As far as timeframe.........I guess until i'm done, or dead......o_O
     
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  26. choptop40
    Joined: Dec 23, 2009
    Posts: 5,733

    choptop40
    Member

    Lots of grinding on my chopped , channelled , stretched , 413 Wedged 36 Buick..guessing hours of grinding is not realistic....Id start at 100 hours on a build PXL_20241214_021955455.jpg
     
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  27. 49ratfink
    Joined: Feb 8, 2004
    Posts: 21,397

    49ratfink
    Member
    from California

    if you are talking about grinding you can't leave out cutting.
    cutting is like real skinny grinding. :)
     
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  28. My welder is in the countryside outside
    of Iowa City, Iowa - he is a renaissance
    welder - he primarily keeps the farmers
    running their equipment in the fields …

    In his bit of spare time he builds
    hot rods for himself.

    IMG_5955.jpeg

    Jim
     
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  29. wheeldog57
    Joined: Dec 6, 2013
    Posts: 3,722

    wheeldog57
    ALLIANCE MEMBER

    Black boogers because of cutting and grinding is a common occurrence here
     
    Rickybop likes this.
  30. X2 for MIG vs TIG
     

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