1970 3927186 cylinder heads

Discussion in 'Original Drivetrain Topic' started by 2ndGenCrazy, Nov 3, 2017.

  1. 2ndGenCrazy

    2ndGenCrazy Veteran Member

    548
    4
    Aug 18, 2011
    Upstate New York
    The chambers do have the relief cut to unshroud the intakes. Is there any distinguishing ID for a casting destined for Flint. Maybe only one foundry?
     
  2. 70lt1z28

    70lt1z28 Veteran Member Gold Member

    1,275
    138
    Oct 3, 1999
    Beavercreek, Ohio, USA
    Not that I am aware of. There are numbers that are visible in the water jackets in the head gasket surface, but I've never seen a correlation done that ties them to a particular foundry. I believe they are the mold numbers but I've never seen a chart as to what numbers were from where.
     
  3. hogg

    hogg Veteran Member

    3,101
    26
    Dec 29, 2000
    pegram,tn.,cheatam
    I been looking for just one for a while now , finly sold my one to another guy that only had one,$150,for the one, Seen several over the last 2 years for $300 to $700. Some with 2.00",1.60" some with 1.90 "valves, some one needing the date code you got is going to pay a lot more. If you just wont good heads it may be cheaper to go with vortic,after market, and sale yours,. the cost of ,machine shop these days Trouble is ,by the time a shop gets thru with them. I do still have a set of over the counter double hump heads ,I belive last numbers or 492,64cc stright plug,would like to get done. I running the 68 double hump heads on my camaro 30 over flat tops 350,i drilled the assy holes ,put pins in studs, with 2"-1.60 valves,it does not like regler gas, but will run on it
     
  4. 2ndGenCrazy

    2ndGenCrazy Veteran Member

    548
    4
    Aug 18, 2011
    Upstate New York
    IMHO the value lies in the matching dates, and the fact they have screw in studs, guide plates and 202/160. Finished heads are $1200 and up on ebay. Others are asking way too much for pressed stud 194 heads in the 186 casting. I am paying $80 to have them tested. I'll try to be fair, as always on asking price. They also have 1.52 roller tip rockers in nice shape. No one tried to be an expert porter either, they look pretty much stock.
     

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