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Technical Chevy 261 Engine I.D. Help Needed

Discussion in 'The Hokey Ass Message Board' started by Dyno Dave, Nov 23, 2015.

  1. Dyno Dave
    Joined: Feb 18, 2011
    Posts: 291

    Dyno Dave
    Member

    A few months ago I got a 261 out of B.C.Canada, the serial #'s are different than the 235 examples I've seen. Casting # is 3769717 so it's a'58-62, but it has the smaller oil filter ports so thinking it's a '58-60. Below the casting # is an M with a raised box around the M, farther back on the block in the casting is F 11 0 with a small 3 above the 0. Driver's side stamped into the pad is W-9 242838...
    Be thankful for any I.D. help... Dyno Dave
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 48,686

    squirrel
    Member

    casting date F 11 0 means June 11, 1960. That's probably all I can do for you, I don't have any books with Canadian numbers.
     
  3. Dyno Dave
    Joined: Feb 18, 2011
    Posts: 291

    Dyno Dave
    Member

    Jim, thanks for your reply with the date. I was told by the seller that this is a truck engine from the states. I'm beginning think that since the 261 build numbers were far less than than the 235 passenger/light truck production that a simple engine serial number was adequate for the 261's...
    What to you think ? dyno dave
     
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 48,686

    squirrel
    Member

    the stamped number looks nothing like you'd find on a 1960 chevy truck engine in the states. It would be something like F0602G or something similar. The first letter is the engine plant, either V, F, or T
     

  5. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,522

    Rusty O'Toole
    Member

    AFAIK the Canadian 261 never did get the full pressure, full flow oiling system. The small lines bypass system was used to the end of production.
     
  6. Dyno Dave
    Joined: Feb 18, 2011
    Posts: 291

    Dyno Dave
    Member

    Jim & Rusty, thank you both for I.D. info. Looks like my 261 is from North of the border... It does have the small bypass ports. I was thinking using a Comp cam with hydraulic lifters, so good to go... Dyno Dave
     

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