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Technical Canadian chevy head id

Discussion in 'The Hokey Ass Message Board' started by fuzzybear, Mar 6, 2018.

  1. Hey guys and girls. These heads came with a small block engine I bought yesterday and I can't definitively identify them. They have canada cast under the valve cover and have the staggered vc bolt pattern. Any help would be appreciated. [​IMG][​IMG][​IMG][​IMG]

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  2. doyoulikesleds
    Joined: Jul 12, 2014
    Posts: 227

    doyoulikesleds

    1816887 – 1963 283, GMC HD truck
     
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  3. porknbeaner
    Joined: Sep 12, 2003
    Posts: 41,049

    porknbeaner
    Member

    In the US ( don't know about Canada) the rocker covers would have had a sticker that said, high torque 283

    Moretec has a lot of info on GM parts and numbers. Sometimes you have to dig around a bit to find what you want.


    http://www.mortec.com/
     
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 43,429

    squirrel
    Member

    What do the combustion chambers look like?
     
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  5. Speed Gems
    Joined: Jul 17, 2012
    Posts: 2,341

    Speed Gems
    Member

    Staggered vc bolt pattern would mean '55- mid'59 here in U.S.A anyway.
     
  6. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 5,736

    56sedandelivery
    ALLIANCE MEMBER

    The single "hump", located where our U.S. heads would have a triangle or pyramid, is a Canadian Power Pack head.
    I'd like to have a pair of those heads to go with my Canadian "Pontiac" embossed valve covers I have in my stash of parts. I am Butch/56sedandelivery.
     
  7. Thanks for the replys guys, I have attached a photo of the combustion chamber as requested and the valves look to be 1.75" inlet and 1.35" exhaust. [​IMG]

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  8. squirrel
    Joined: Sep 23, 2004
    Posts: 43,429

    squirrel
    Member

    They are not high performance heads....what are you planning to do with them? knowing that, we could maybe give you some recommendations.

    I thought the older small block valves were usually 1.72/1.50 sizes?
     
  9. I don't really have any plan for them at the moment, just wanted to know what I have. Down the track when I rebuild the engine it will probably be fairly mild (more for look and sound than anything). My math may be slightly off with the valves I was converting from metric measurements.

    Sent from my CPH1607 using The H.A.M.B. mobile app
     

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