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Its a Jimmy!

Discussion in 'HA/GR' started by GMC BUBBA, Nov 6, 2006.

  1. GMC BUBBA
    Joined: Jun 15, 2006
    Posts: 3,420

    GMC BUBBA
    Member Emeritus

    Got to love this forum ! It has given me the push i need to get off my butt and make the HA/GR car start going together.
    Thought i would throw a couple pics out to begin with.

    I have had this extra gmc 302 bored .125 on the stand going together for some time now.
    My model A has one in it and once you own one ya got to have two or more i guess.
    May get it in the frame this month yet. More pics to come.:)
     

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  2. Lookin good dude. Should be a fun ride down the 1/4.
     
  3. Wow.....that is a SWEET looking engine, even though I'm a ford nut, that's one hot looking unit......great to see it destined for a HA/GR......

    Cheers,

    Drewfus:D
     
  4. GMC BUBBA
    Joined: Jun 15, 2006
    Posts: 3,420

    GMC BUBBA
    Member Emeritus

    Just so folks dont think i am partial, heres my Ford project from last year:

    www.gasolinealleyshops.org
     

  5. chuckspeed
    Joined: Sep 13, 2005
    Posts: 1,643

    chuckspeed
    Member

    There's a cover of Hot Rod from '52 with that EXACT motor on it. Was mean as hell then - it's mean as hell now. Once you wind that sucker out, you're sure to trap over 110!

    Nice work!
     
  6. FiddyFour
    Joined: Dec 31, 2004
    Posts: 9,024

    FiddyFour
    Member

    yes indeedy... thats a FINE lookin mill
     
  7. 2b-banjo
    Joined: Jan 10, 2004
    Posts: 232

    2b-banjo
    Member

    What is the engine about? What cam, pistons, etc.? Where can you get gaskets, etc. How do you full flow these puppy's?
    Any info would be appreciated.
     
  8. GMC BUBBA
    Joined: Jun 15, 2006
    Posts: 3,420

    GMC BUBBA
    Member Emeritus

    The GMC engines came into the scene as a heavy duty truck engine in the early 50s. 53-56 it was available as a 302 cubic inch engine with a 4 inch bore and 4 inch stroke. This engine developed tons of torque at a relitively low rpm . If you were a die hard GM guy and wanted to compete with the flatheads then the "jimmy" was the engine of choice.
    Today there are still quite a few floating around from time to time and they are a great replacement for the early sixs in the 40s gm products.l
    I happen to have three of them, one in my 29 Model A , one is built for my HA/GR car we are presently building, and a third unit with roller cam shaft and two afb four barrells ( out of a pulling tractor).
    There are two books you need to get and read.
    One is California Bills Chevrolet,GMC and Buick (straight eight) Speed manual and the other is "How to hop up Chevrolet and GMC engines by Roger Huntington.
    Also mostly all aprts can be purchased thru Patricks Truck Parts

    at : www.patricksantiquecars.com

    Also read the posts on the www.inliners.org web site as well.
     

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  9. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 5,456

    THE FRENCHTOWN FLYER
    Member
    from FRENCHTOWN

    What happened to these engines? Did any get into a HAGR after Bubba's passing?
     

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