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Technical Model B block OHV wear and tear

Discussion in 'Traditional Hot Rods' started by G_Don, Nov 29, 2017.

  1. G_Don
    Joined: Feb 17, 2017
    Posts: 3


    I have a 30 phaeton with a B block. It's stock at the moment and have been researching some banger speed equipment. I plan on driving it to work pretty frequently as my commute is 10 miles and all back country roads. I'm wondering how well an OHV conversion will hold up after a lot of miles.

    I've done a bunch of searches trying to find something about durability/longevity of an OHV but haven't found anything specifically related. Are OHVs impractical or more troublesome in a daily driver? Would a HC head be a more practical/durable option (cost aside)?

    Anyone with a link to a thread I may have missed, or some personal opinions/experiences with OHVs and dependability/longevity of it would be greatly appreciated!

    Thanks for your time,
  2. dmdeaton
    Joined: Nov 25, 2017
    Posts: 357


    I am on the list for one of his Roof 101 heads. I cannot comment on durability as this will be my first. They have modernized the old design a little and have sold a good number of these. Charlie will answer any questions you have and runs one on his speedster. He sells a couple different size hardened valve seats to cover up spider cracks around the original seats, which I am told is common on the B.
    I also have one of his 6.5/1 Lions Head, intake manifold, cast iron headers, and a Stromberg 97. I am going to run a B counterbalance crank, all insert bearings, on a A block. This will be my first build.
    I am going to save the Roof for my next project, if I live that long, and put it on a B block. I know this answers none of your questions, but maybe you haven't seen Charlie's site. Lots of good info.
  3. Model A Gomez
    Joined: Aug 26, 2006
    Posts: 1,051

    Model A Gomez

    Never ran an OH on a banger but I had a B with a Winfield head and knocked the Babbitt out of the rods twice, went to an inserted A motor. Will depend on how you drive it, they don't like high rpm's and I never treated it real gently . Secrets of Speed Society has a lot of banger info, might find something there.
  4. rusty valley
    Joined: Oct 25, 2014
    Posts: 704

    rusty valley

    i believe the first overhead conversions for fords were to get more power for the trucks. racers picked up on the idea for sure, but it should not be any less reliable than any other motor unless you are trying to squeez too much horsepower with bolt on goodies and drive like the devil !
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  5. waxhead
    Joined: May 11, 2013
    Posts: 1,067

    from West Oz

    I have just installed a Miller OHV on my Model A Engine and I cannot believe how much better it drives compared to the same engine with an original Winfield 7:1 Cast Iron Crows-foot Head. The Miller OHV has made a huge difference in power. I would definitely recommend getting one.

    I also cannot comment on durability, but quite a few guys on the FordBarn use OHVs for touring, so could probably answer your question.

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