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Help Me ID This Edmunds Cylinder Head

Discussion in 'The Hokey Ass Message Board' started by HenryJGuy, Mar 9, 2011.

  1. HenryJGuy
    Joined: Mar 8, 2007
    Posts: 238

    HenryJGuy
    Member
    from Dayton, TN

    My boss bought this cylinder head for a Packard project car, but realized it was not for the right year engine. Stud count is different, and spark plug location is different. The spark plugs are evenly spaced, instead of grouped in 2's, and it takes 38 studs/bolts. I'm attaching a couple of pictures of it. Since he can't use it, he wants to sell it, so we're basically hunting information for when we list it. Any help is appreciated.

    [​IMG]

    [​IMG]
     
  2. terryble
    Joined: Sep 25, 2008
    Posts: 541

    terryble
    Member
    from canada

    Wasn't someone looking for a pontiac eight head hre recently that looked a lot like this?
     
  3. HenryJGuy
    Joined: Mar 8, 2007
    Posts: 238

    HenryJGuy
    Member
    from Dayton, TN

    Well, we're certain that it's a Packard cylinder head. Appears to be a later model head for one of their bigger straight 8 engines. I just need confirmation before I can list this thing for sale.
     
  4. LowFat48
    Joined: Aug 28, 2005
    Posts: 910

    LowFat48
    Member


  5. DD COOPMAN
    Joined: Jul 25, 2009
    Posts: 1,122

    DD COOPMAN
    Member

    Maybe HOT ROD PACKARD will chime-in here if ya put "PACKARD" in the title of this thread. He eats and breathes this stuff. DD
     
  6. Joe G
    Joined: Apr 2, 2008
    Posts: 83

    Joe G
    Member
    from Minnesota

    I have a '47 Packard Super Clipper (model 2151) in my shop for some rewiring that looks like that head would fit. I believe the engine is a 356"

    [​IMG]

    All the bolt locations and the heater line port location look identical. This head has the number 351253 cast into it ahead of the thermostat boss. For size comparison, this one is 33-5/16" center to center from the far front to the far rear bolt on the manifold side of the head.

    Hope this helps...Joe G
     
    Last edited: Mar 9, 2011
  7. DD COOPMAN
    Joined: Jul 25, 2009
    Posts: 1,122

    DD COOPMAN
    Member

    The Edmunds head pictured above has evenly-spaced spark plug holes. DD
     
  8. Joe G
    Joined: Apr 2, 2008
    Posts: 83

    Joe G
    Member
    from Minnesota

    True. I figured that having the plug centered in the combustion chamber rather than above the exhaust valve is one of the features that made the Edmunds a better performing head than the stock one. Or maybe the smaller combustion chambers on the Edmunds forced them to move the plugs to avoid interference with the valves.

    Where is that Packard expert when you need him???
     
  9. HenryJGuy
    Joined: Mar 8, 2007
    Posts: 238

    HenryJGuy
    Member
    from Dayton, TN

    Yeah, the spark plug location puzzled me, but as long as the bolt holes are the same, it looks like it would work fine. Thanks for the help guys...any other info is greatly appreciated.
     
  10. plymouth1951
    Joined: Nov 28, 2010
    Posts: 126

    plymouth1951
    Member

    Yep, edmunds head on my Plymouth flathead has a diff than stock cast iron head spark plug location too.
     
  11. Brad54
    Joined: Apr 15, 2004
    Posts: 6,021

    Brad54
    Member
    from Atl Ga

    Mine too... Edmunds moved the plug location on the Plymouth/Dodge 6 flathead, so they may have moved it on the Packard, too.

    -Brad
     
  12. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 6,250

    Ebbsspeed
    ALLIANCE MEMBER

    The plugs being centered, rather than above a valve, also enables the use of a higher lift cam without concern for a valve kissing the plug electrode.
     
  13. belair
    Joined: Jul 10, 2006
    Posts: 9,013

    belair
    Member

    Man, that is a lot of aluminum. Very cool.
     
  14. CombatMotors
    Joined: May 8, 2013
    Posts: 4

    CombatMotors
    Member


    the Packard experts are at PackardInfo.com
     

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