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Technical Isky 400 Jr with stock 8ba heads?

Discussion in 'The Hokey Ass Message Board' started by Swiss50chevy, Aug 29, 2015.

  1. Swiss50chevy
    Joined: Apr 30, 2009
    Posts: 561

    Swiss50chevy
    Member

    Anyone one here running a 8ba with stocks cylinder heads and a Isky 400jr cam? I read that this would have some clearance issue? Can i clearance the heads myself if so??? Thanks
     
  2. dirty old man
    Joined: Feb 2, 2008
    Posts: 8,912

    dirty old man
    ALLIANCE MEMBER

    The valves will most likely hit the head way before they reach full lift.
    Been over 50 years since I built a flathead with a 400 Jr, but IIRC, it took a flycut of .150" in the Edmunds aluminum heads I used. Ask around and you may find some old guy who still has the cutter and the setup fixtures required. I'd hate to know I was facing the job of cutting these out by hand on cast iron heads. Seems that I've seen some of the aluminum heads sold today that come clearanced for a .400" lift cam.
     
  3. 19Fordy
    Joined: May 17, 2003
    Posts: 7,230

    19Fordy
    Member

    Swiss50chevy: The folks on www.fordbarn.com will have lots of info on your question.
    They possess a ton of flathead knowledge.
     
  4. boo
    Joined: Jul 6, 2005
    Posts: 566

    boo
    Member
    from stuart,fl.

    had a 400jr in my rdstr, not very streetable, took it out, $100 if you need it.
     

  5. Swiss50chevy
    Joined: Apr 30, 2009
    Posts: 561

    Swiss50chevy
    Member

    Ill pm you.
     

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