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Caddy Engine Casting Numbers

Discussion in 'The Hokey Ass Message Board' started by Slick50, Sep 11, 2009.

  1. Hi all,

    Here is some Caddy casting number info I came across a while ago, while I was trying to decipher my engine numbers. It's by far not a complete list, so if you can add to it feel free to do so, or send me the info and I will include it. This may be better placed elsewhere on the board, but I wanted to put it here so it would be seen by anyone who might find it useful.

    The info came from a site called "Swap Meet", but I've never been bright enough to find it after the first time I stumbled upon it. It is accurate for my engine numbers, but further than that I do not know so use it as you see fit. I have it as a word document if needed.

    Cadillac Casting Numbers

    Block
    Cast number Year Displacement
    1464819 57 365
    1467267 58 365
    1469230 59-63 390
    1473257 59-62 390
    1473267 63 390

    Intake Manifold
    Cast number Year Displacement
    1455104 49 331
    1456741 50-51 331
    1463414 52-55 331
    1464176 56 365
    1465061 57 365
    1469889 58 365 (3x2)
    1472225 59-60 390 (3x2)
    1486425 68-69 472
    Head
    Cast number Year Displacement
    1465406 (right) 57 365
    1465431 (left) 57 365
    1473449 (right) 58-63 390
    1468025 (left) 58-63 390
     
    Exhaust Manifold
    Cast number Year Displacement
    1453961 (right) 49-51 331
    1453754 (left)

    1463961 (right) 52-55 331
    1461495 (left)

    1462987 (right) 56 365
    1464110 (left)

    1464237 (right) 57 365
    1464110 (left)

    1469298 (right) 58 365
    1475463 (left)

    1475390 (Right) 59-62 390
    1475463 (left)

    1477980 (right) 63-64 390
    1475463 (left)

    1481668 (right) 65 (Fleetwood) 429
    1475463 (left)

    1483915 (right) 65-67 429
    1482752 (left)

    1485556 (right) 67 (Eldorado) 429
    1485555 (left)

    1486442 (right) 68-69 472
    1486383 (left)

    1485750 (right) 68 472
    1485749 (left)

    1495095 (right) 70-74 472/500
    1486383 (left)

    1486442 (right) 75 500
    1486383 (left)
     
    Last edited: Sep 11, 2009
  2. Half-Fast Motors
    Joined: Nov 14, 2009
    Posts: 205

    Half-Fast Motors
    Member

    Thanks Ken. Just bought a Caddy V-8 & not sure if it's a 331 or later motor. This helps.
     
  3. Smokey2
    Joined: Jan 11, 2011
    Posts: 920

    Smokey2
    Member

    Tryin' to I.D. What I Think Is 365 c.i. Caddy?
    Block 12551364 ??
    Head 2561878 ??
    Crank 12552215
    ___________________________________________
    :eek:
    "My Wife ran off with my BEST FRIEND !
    An, I sure Do MISS HIM!" Smoke'
     
  4. kustomrf
    Joined: Oct 23, 2008
    Posts: 107

    kustomrf
    Member

    nice mine is 59-63 390 it came out of a 59
    thanks slick50
     
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  5. Pete
    Joined: Mar 8, 2001
    Posts: 4,525

    Pete
    Member

    I’m having trouble figuring out which motor I have.

    Block casting number is 1461476
    Stamped into the bell housing (driver side)
    Is 4V5269


    Stamped into the front left deck is 556206628
    And ideas??

    Pete
     
  6. H380
    Joined: Sep 20, 2015
    Posts: 433

    H380
    Member
    from Louisiana

    I get 1461476 as a 1955 Olds 331 block. Not Caddy.
     
  7. Pete
    Joined: Mar 8, 2001
    Posts: 4,525

    Pete
    Member

    Haha....it’s def a caddy

    I measured the bore, it’s a 331
     
  8. H380
    Joined: Sep 20, 2015
    Posts: 433

    H380
    Member
    from Louisiana

    On all the lists I have saved. Has it as an Olds. Maybe bad info. One PDF from a google search has this.

    Cadillac
    331 54-55 #1461476 w/o integral bell housing
     
  9. Pete
    Joined: Mar 8, 2001
    Posts: 4,525

    Pete
    Member

    That’s exactly what it is, unfortunately it takes the Uber hard to find bellhousing
     
  10. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 8,054

    mgtstumpy
    Member

    • Serial numbers and engine numbers were the same again.
    • They appeared
      • on a boss on the front right hand face of the engine block;
      • on the lubrication plate on the left front door pillar (1953-1957)
      • and on the right frame side member behind the motor support.
    • The first pair of symbols were "55" to designate the model year.
    • The next two symbols indicated series as follows:
      • "62" = Series 62 including Eldorado Specials;
      • "60" = Series 60 Fleetwood;
      • "70" = Series 70 Eldorado Brougham; and
      • "75" = Series 75 Fleetwood
    • The immediately following numbers, beginning at 00000 for each series, indicated the production sequence in consecutive order.
    • Ending numbers were the same for all series since the engines were installed in mixed production fashion.
    1955 YOM, 62 series engine, http://forums.cadillaclasalleclub.org/index.php?topic=119266.0
    [​IMG]
    upload_2018-4-14_13-9-31.png
    upload_2018-4-14_13-8-57.png
    [​IMG]
     
    Last edited: Apr 13, 2018
  11. TheCarcheologist
    Joined: Aug 22, 2018
    Posts: 1

    TheCarcheologist

    Hi guys. I was a member of the H.A.M.B. for a long time, but that was years ago. "Life" happened, a little boy was born, the career changed... Yadda yadda yadda. So anyhooo, stumbled upon this thread while researching something I found on a '58 Caddy thats been eating away at me for a few weeks now. It's nothing outrageous or anything, just... odd. I pretty much determined it was a 365 based on the 1465061 casting number on the intake. It's just a standard 4V intake as far as I can tell, but EVERY SINGLE OTHER INTAKE I've found anywhere online with this casting number is followed by a "-1", whereas the one I put eyes on a few weeks back was followed by a "-2". I've been unable to find another with this casting number followed by a -2. Any idea what the dash-digit means, or why this one isn't like all the other kids? Thanks in advance, and I'm hoping to rejoin the little family of guys that build go-fast if you'll have me!
     

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