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1gn HEMI

Discussion in 'The Hokey Ass Message Board' started by radrod, Apr 28, 2013.

  1. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member

    Hey guys and girls, I have a question I'm hoping someone can help me with.

    I've been researching and researching serial numbers and casting numbers for 1gn HEMI's but am having no luck in finding any info at all with the numbers my buddy is giving me. His father has a 331 Chrysler Firepower Hemi that I will be purchasing soon. It is in rough shape, and torn apart. But for the price, I cant say no. Pics were sent to me showing the numbers. Even if it turns out UN-salvageable it will make a great conversation piece in my "man cave". Tho, I hope not because I want to use it. I can't find anything, so if anyone can help out and give me info about the engine based off the numbers it will be GREATLY appreciated.

    So far, I have come to determine the engine is 1954 or newer do to the oval exhaust ports on the head (opposed to the earlier hemi's having round exhaust ports). It has a 4-barrel intake manifold and flat top pistons (7.5-1 compression). All this info lead me to believe it was either a 1954 331 Firepower hemi engine with the rated 235hp + 330lb-ft or a 1955 331 Firepower hemi engine with the rated 250hp + 340lb-ft out of a car. But I can't find anything when I type in the numbers.

    What I got:

    Serial Number: C72-278-7C

    Casting Number: 1618828-1AB B276
     
  2. pinkynoegg
    Joined: Dec 11, 2011
    Posts: 1,136

    pinkynoegg
    Member

    first off, please go to the intro section and do an intro per protocol. (just trying to save you from the flack)

    second, on the back of the engine there should be a plate with the numbers you need near the bellhousing (atleast mine had it)
     
  3. BrandonB
    Joined: Feb 24, 2006
    Posts: 3,572

    BrandonB
    ALLIANCE MEMBER
    from nor cal

    I'm looking at the Complete Chrysler Hemi engine manual and that number does not come up in the casting number list for the block. I don't see any engine ID with that letter number combination. I see a C51-8, C52-8 and C53-8 and for 1954 the combos are C541-8 and C542-8
     
  4. Crystal Blue
    Joined: Nov 18, 2008
    Posts: 609

    Crystal Blue
    Member

  5. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member

    Ok, thanks man. I'd hope people have better things to do then give me flack about not introducing myself after joining the website 3 years ago. lol.

    The serial numbers he got were at the top of the block by the water pump. I'll tell my buddy to check out there as well.

    Thanks again
     
  6. Crystal Blue
    Joined: Nov 18, 2008
    Posts: 609

    Crystal Blue
    Member

  7. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member

    I got beat on my reply. lol.

    Ya, that is the weird part. I've checked a lot of sites and the numbers just don't match. I just don't understand and am dumbfounded. The serial number above is the one he sent a pic of. I didn't get a pic of the casting number he gave me. The pic's he sent were all texted on my cell, so I don't know how I'd get em up on here :(
     
  8. tubman
    Joined: May 16, 2007
    Posts: 8,260

    tubman
    ALLIANCE MEMBER

    How do you know it's a 331 if you can't find the numbers? Or even a Chrysler? I am ***uming that i's a short bell block.
     
  9. pinkynoegg
    Joined: Dec 11, 2011
    Posts: 1,136

    pinkynoegg
    Member

    ahh yes the numbers should be up top by the water pump as well. give us some pictures and we will see what comes of it
     
  10. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member

    My buddy told me it is a 331, or at least he thinks. He also told me it has the "Chrysler Firepower" valve covers.

    I'm just going with the info I've been provided so far, but the numbers just aren't matching up with anything I can find. I'm starting to think the engine may be something else???????????????????????

    I'm going to try uploading pics off my cell phone tomorrow if I can figure out how, and that may help.
     
  11. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member

    [​IMG]


    [​IMG]


    [​IMG]


    [​IMG]


    [​IMG]


    Didn't want to wait. lol
     
  12. pinkynoegg
    Joined: Dec 11, 2011
    Posts: 1,136

    pinkynoegg
    Member

    honestly it would probably be way cheaper to get a more complete engine and go from there, unless you have a source for super cheap hemi parts
     
  13. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,901

    need louvers ?
    Member

    I am far from a hemi expert, but I do know they made lots of engines for industrial uses and for marine applications as well. I wonder if that could be the source of the mystery casting number?
     
  14. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member

    It probably would be, but I was offered this engine for $150. So even if I was to get it and have it for parts, a longterm build or conversation piece I don't want to let it go if I can find out what it is. If the block and heads are good, they together are worth more then that ;)
     
  15. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member



    I was starting to think the same thing. Cuz my buddy has no idea what the engine came out of, as it has been in a shed for years. Till the shed recently fell down.
     
  16. pinkynoegg
    Joined: Dec 11, 2011
    Posts: 1,136

    pinkynoegg
    Member

    the industrial engines most of the time didnt have the numbers up top like that. they had the tags on the bellhousing
     
  17. BashingTin
    Joined: Feb 15, 2010
    Posts: 270

    BashingTin
    Member

    There is a 1956 331 truck block with the casting number 1619829. I'm just guessing here, but if the first and last number 8's in the casting number you give above are difficult to read, they might actually be number 9's, then you might have a match. What are the casting numbers on the heads?
     
  18. stude_trucks
    Joined: Sep 13, 2007
    Posts: 4,752

    stude_trucks
    Member

    The shed must not have been providing much protection even when it was up because that thing looks like it has been out in the open for years at least.

    I'd check for some obvious damage to the block before I'd even consider $150 for it. Otherwise real good chance you are just buying some s**** iron there.
     
  19. George
    Joined: Jan 1, 2005
    Posts: 8,000

    George
    Member

    That casting # is a '56 354, but underbored 331s with that casting # have been reported.
     
  20. TR Waters
    Joined: Nov 18, 2006
    Posts: 1,439

    TR Waters
    Member
    from Vermont

    A C72 is a 56 354, which from the pictures it appears to be.
     
  21. BashingTin
    Joined: Feb 15, 2010
    Posts: 270

    BashingTin
    Member

    You are right George! I must have been reading Leo's book wrong. :eek:
     
  22. 73RR
    Joined: Jan 29, 2007
    Posts: 7,342

    73RR
    Member

  23. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member

    Sweet, a 354. That makes me even happier. Now just hope its salvageable.
     
  24. radrod
    Joined: Aug 3, 2010
    Posts: 9

    radrod
    Member

    Er the last link says a 1957. Either way I'm happy.

    Thanks everyone for pitching in and helping out
     

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