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Technical Identify in-line 6

Discussion in 'The Hokey Ass Message Board' started by Hyper Henry, Sep 29, 2019.

  1. Hyper Henry
    Joined: Sep 25, 2008
    Posts: 52

    Hyper Henry
    Member

    not having much luck running the numbers on this in-line 6 that I picked up. Any help to identify would be great!
     

    Attached Files:

  2. Its a Chevy 235 cu. in. That casting number was used from '55 through '62. This one appears to be from 1960.
     
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  3. squirrel
    Joined: Sep 23, 2004
    Posts: 44,646

    squirrel
    Member

    not easy to run the numbers on Canadian engines, because most of the documentation out there is for US engines. Cast Oct 14 1958 (if that last number is really an 8, it's hard to tell for sure, it might be a 9 or a 3 or a 0 or who knows)
     
  4. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,053

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    Given that appears to be a Canadian built engine, it could be a 261, not a 235. The cylinder bore is the difference. According to numerous posts on the subject, Canadian built Pontiacs were built on Chevrolet based bodies/chassis, including the running gear. Six cylinder models of that era were equipped with 261 engines. However, that said, it may well be a 235 if it came from a Chevrolet in the first place.

    Ray
     
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  5. Hyper Henry
    Joined: Sep 25, 2008
    Posts: 52

    Hyper Henry
    Member

    Thanks guys. I wanting to build a in-line 6 for my drag only Henry J and already purchased a 74 292 from a 75 C10 but when I seen this I couldn’t resist especially with the original Offenhouser stuff on it. Seller said guy had it some sort of roundy round car and it’s evident it was raced as has an external oil lines out of the pan, fuel block off and heavier valve springs in it. The block looks much beefier in this than the 74 292 I got. Which one am I better off building up as a race motor?? I am going to push it as I am after 400 hp!
     
  6. VANDENPLAS
    Joined: Dec 14, 2009
    Posts: 2,094

    VANDENPLAS
    Member

    It’s a nice engine
    The Canadian ponchos where just fancy chevies

    They came with 261 engines with steel timing gears and bypass oil filter
    Hydraulic lifters


    If your engine has been hoped up might have been changed to solid lifter and full flow oiling

    Look for the capitans bars on top of the starter and under the intake to confirm
     
  7. Hyper Henry
    Joined: Sep 25, 2008
    Posts: 52

    Hyper Henry
    Member

    “Capitans bars”??

    I just pulled the valve cover off and has adjustable rockers. They Stock or home made??
     

    Attached Files:

  8. VANDENPLAS
    Joined: Dec 14, 2009
    Posts: 2,094

    VANDENPLAS
    Member

    3391C97B-A259-4125-9A88-301B2DA7706B.jpeg 5E5E8AD1-30DA-49D9-AAD0-46F052F448BA.jpeg

    There and there !

    Adjustable rockers came from factory
    Not to say your engine does not have a cam or valve work.

    I don’t remember the name, I have the book it’s yellow and it’s a how to hip up your Chevy 6 hot rod book by a known builder in the 50-60’s
    Gives all the little tricks etc.

    It’s still in print , bought mine 10 or so years ago from indigo
     
  9. squirrel
    Joined: Sep 23, 2004
    Posts: 44,646

    squirrel
    Member

    Bill Fisher maybe, for the book?

    bill fisher.jpg
     
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  10. VANDENPLAS
    Joined: Dec 14, 2009
    Posts: 2,094

    VANDENPLAS
    Member

    15061893-4518-4B01-A086-A77104E641E7.jpeg

    I’m guessing the same book @squirrel
    I have the yellow copy probably just a new reissue

    Great resource
     
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  11. Mr48chev
    Joined: Dec 28, 2007
    Posts: 26,235

    Mr48chev
    ALLIANCE MEMBER

    As far as stout the 292 is going to be times over stouter block wise than a 235/261. 4 main bearings in the early engine apposed to the 7 in the 291.

    Vintage gasser at lets say Hamb friendly events. It's just as much about having a cool engine and having fun as it is going fast. I saw that at the Billetproof drags. The guys who seemed to have the most fun actually had milder engines that didn't take any prep before making another round. As long as you are running against a pretty well equal car it doesn't much matter or at least it didn't appear to.
    To me though the 292 makes more sense as all the V8 stuff except flywheel bolt on the back of the 292. Scatter shield, no problem any V8 Chev bellhousing for a 168 tooth flywheel will work.
     
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  12. Hyper Henry
    Joined: Sep 25, 2008
    Posts: 52

    Hyper Henry
    Member

    Just looked and no captain bars that I can find. Took the side cover off and does have solid lifters.
     
  13. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,053

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    @Hyper Henry

    Times 2 with @Mr48chev ......post #11

    It just depends on what category you want to race in.

    Ray
     
  14. Dyno Dave
    Joined: Feb 18, 2011
    Posts: 236

    Dyno Dave
    Member

    If 400hp is the number required the 235 is not the engine to get there, California Bill's book shows dyno numbers on a 235 equipped with Howard SU-9A cam, Nicson triple sidedraft manifold, 8.5:1 CR, Methanol Fuel =175 hp, on 20% Nitro-Methane+ 10% tap water = 195hp...Roger Huntington book has a 248 full Wayne 12 port conversion, 10.5 compression, triple carbs = 180 hp approx.@ 5200 rpm, same setup on pure methanol= 205 rpm @ 5000 rpms.
    I don't know if a 292 will get you your 400 number, but much closer and far, far cheaper because of the SBC parts interchange... sounds like a great project, best of luck, dyno dave
     
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  15. Hellfish
    Joined: Jun 19, 2002
    Posts: 6,413

    Hellfish
    Member

    I have both. They are different books, but 90% overlap in content.
    I think all engines with captain's bars were 261s, but not all 261 had captain's bars. The only way to know for sure is to run the numbers. If you're having trouble with Canadian numbers, check with ChevyTalk or Inliners.org.
     
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  16. 41rodderz
    Joined: Sep 27, 2010
    Posts: 3,601

    41rodderz
    Member
    from Oregon

    Has anybody had problems keeping flywheel bolts tight at high tons while racing these 292's ?
     
  17. Hellfish
    Joined: Jun 19, 2002
    Posts: 6,413

    Hellfish
    Member

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