Register now to get rid of these ads!

Hot Rods 350 GM engine ?

Discussion in 'The Hokey Ass Message Board' started by mlinton1941, Oct 9, 2023.

  1. mlinton1941
    Joined: Oct 17, 2012
    Posts: 641

    mlinton1941
    Member

    how do I find out what the numbers mean on my 350 GM engine ?
     
  2. e1956v
    Joined: Sep 29, 2009
    Posts: 2,572

    e1956v
    Alliance Vendor

  3. alanp561
    Joined: Oct 1, 2017
    Posts: 5,461

    alanp561
    ALLIANCE MEMBER

  4. squirrel
    Joined: Sep 23, 2004
    Posts: 59,580

    squirrel
    Member

    First step is to figure out if it's a Chevy 350, or some other brand. If it's a Chevy, then look on the back for the block casting number and casting date. Then look on the top of the front pass side deck surface, in front of the cylinder head, for the engine number and the partial VIN (if it has one). Then post all the numbers, pictures of them if possible, and we'll help you figure it out.

    In the end, it probably won't make much difference what the numbers are, except to give you the year range that it was made...as the numbers don't really mean much when you're building a hot rod. Knowing about when it was made, will give you an idea what parts it might have inside, and more importantly what parts will work with it, as there were some design changes over the decades.
     
  5. mlinton1941
    Joined: Oct 17, 2012
    Posts: 641

    mlinton1941
    Member

    1M10Z5 1VR
    10066036
     
    Last edited: Oct 9, 2023
  6. mlinton1941
    Joined: Oct 17, 2012
    Posts: 641

    mlinton1941
    Member

    High Nickle
    Corvette is all I can find ??
     
  7. When I was a young kid, my Dad said that 350s were not any good. What you need is a 327, that is what he taught me. :D.

    Also, I read on the inter-web all the time, that ALL them there, small block Chevy engines are Corvette engines. :D :rolleyes:
     
  8. swade41
    Joined: Apr 6, 2004
    Posts: 14,311

    swade41
    Member
    from Buffalo,NY

    VR code

    Screenshot_20231009_222008_Chrome.jpg
     
    alanp561 likes this.
  9. squirrel
    Joined: Sep 23, 2004
    Posts: 59,580

    squirrel
    Member

    take a picture of the numbers, because it's easy to misread them...also it's hard to tell if it's an original stamp from what you posted, but looking at a picture, I could tell immediately.

    The engine number would be a letter (T, F, V, or M) followed by 4 numbers and two or three letters (possibly one of these would be a number). What you posted does not match that format.
     
  10. Mr48chev
    Joined: Dec 28, 2007
    Posts: 35,794

    Mr48chev
    ALLIANCE MEMBER

    VR Comes out as a 69 Chevy 3/4 or 1 ton with a 3 speed stick.
    If the block is in good shape it's a good one to use as the base of a gen 1 small block 350 based build. Screenshot (197).png
     
  11. squirrel
    Joined: Sep 23, 2004
    Posts: 59,580

    squirrel
    Member

    yeah, but....

    I have a 396 that has an engine code ending in IVR, and the suffix is IV, and the R means it came with a Rochester carb.

    We need a picture.
     
  12. squirrel
    Joined: Sep 23, 2004
    Posts: 59,580

    squirrel
    Member

    Oh...also, that casting number 10066036 is for a mexican replacement block, which was never installed originally in a car, so the engine number is going to be weird. The M is a sign of that. Also look for HECHO EN MEXICO cast into the block on the back.
     
  13. Mr48chev
    Joined: Dec 28, 2007
    Posts: 35,794

    Mr48chev
    ALLIANCE MEMBER

    Casting number shows up on several sources as a Goodwrench target motor casting number.
     
    427 sleeper and alanp561 like this.
  14. Budget36
    Joined: Nov 29, 2014
    Posts: 15,179

    Budget36
    Member

    Well, to simplify things, as mentioned before, it doesn’t matter what it came from. Unless you need to do a “number match” thing.
    Best question I can think of, is it a runner as is, or in need of going through?

    If it’s a runner, then I can see wanting to know what to expect from it, but if it needs to be gone through, makes no difference.
     
    2OLD2FAST and Truckdoctor Andy like this.
  15. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,471

    gimpyshotrods
    ALLIANCE MEMBER

    High Nickel blocks are a myth.
     
  16. swade41
    Joined: Apr 6, 2004
    Posts: 14,311

    swade41
    Member
    from Buffalo,NY

    They come apart like all the others, destroyed 2 in the J

    102_6441.jpg 20210313_011207.jpg
     
    WC145, chevy57dude, Just Gary and 8 others like this.
  17. rustydusty
    Joined: Apr 19, 2010
    Posts: 2,493

    rustydusty
    Member

  18. pprather
    Joined: Jan 10, 2007
    Posts: 8,789

    pprather
    Member

    If you're lucky, it might buff out.
     
    5window, swade41 and gimpyshotrods like this.
  19. swade41
    Joined: Apr 6, 2004
    Posts: 14,311

    swade41
    Member
    from Buffalo,NY

    You would have to visit my Henry J thread to read the story of my woes lol
    I don't want to hijack this thread
     
    deuceman32 and Truckdoctor Andy like this.
  20. mlinton1941
    Joined: Oct 17, 2012
    Posts: 641

    mlinton1941
    Member

     

    Attached Files:

  21. squirrel
    Joined: Sep 23, 2004
    Posts: 59,580

    squirrel
    Member

    1M0125 1VR

    Made in Mexico on January 25th, unknown year

    If you want to know how old it is, you'll need to find the casting date code either on the back of the block (usually hard to see when it's in a car), or maybe on one of the heads, hiding under the valve cover.

    I don't know of any lists of suffix codes for the replacement engines, unfortunately.
     
  22. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 6,037

    2OLD2FAST
    Member
    from illinois

    You've got a one in 250 million chance of accurately identifying your 350 !! Ya feeling lucky ?
     
    427 sleeper likes this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.