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pontiac ohc 6?

Discussion in 'The Hokey Ass Message Board' started by pinkchrome, Nov 18, 2010.

  1. pinkchrome
    Joined: Oct 23, 2010
    Posts: 4

    pinkchrome
    Member

    anybody know anything about these motors and what are they worth?
     

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  2. Pontiac Slim
    Joined: Jan 16, 2003
    Posts: 1,188

    Pontiac Slim
    Member Emeritus

    Had the HO version in a new 67 Tempest... Went awesome... shifted at 6300.. Drag raced the snot out of it.. Not one issue.
    Worth wise.. go on a Pontiac site such as Pontiac Years Form and poke around.. Is it running?
    Pontiac Slim
     
  3. AcadianKid
    Joined: Dec 5, 2005
    Posts: 202

    AcadianKid
    Member

  4. ClayPigeonKiller
    Joined: Mar 3, 2010
    Posts: 203

    ClayPigeonKiller
    Member

    I believe they were 250 cubes. OHC and they had two versions. A 2v and a 4 v. I'm thinking forged crank too.

    They wen't very well, especially for what they were, but they came out at the wrong time. I think if they would have brought them out about '70 or 71 they would have done better, considering insurance costs and rising fuel. They didn't last very long, but they are still around. They should cost more than a 250 chevy, but they aren't made of gold either. 200-400 for good rebuilder; i would think.

    Adam
     

  5. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,564

    HEATHEN
    Member
    from SIDNEY, NY

    '66-'67=230
    '68-'69=250
    No forged crankshafts, but a few adventurous individuals put 292 Chevy cranks and custom pistons in them.
     
  6. pinkchrome
    Joined: Oct 23, 2010
    Posts: 4

    pinkchrome
    Member

    well ok let me show you what its sitting down in,im trying to decide wheather or not to remove it and sell them seperately or leave as a whole and before anybody says it, no i didnt put it there ,and yes i know
     

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  7. Stukka
    Joined: Feb 13, 2007
    Posts: 64

    Stukka
    Member
    from SoCal

    Separate. They guy who wants that body, doesn't want that engine and visa versa. You'll sell both quicker that way.
     
  8. Hi!
    Joined: Oct 4, 2006
    Posts: 731

    Hi!
    Member
    from SoCal

    Seperate them. Cool motors if they run. They have oiling problems tho if they were not maintained alot.
     
  9. Screamin' Metal
    Joined: Feb 1, 2009
    Posts: 506

    Screamin' Metal
    Member
    from Oklahoma

    Good hotrod-able 6! As you've been told, just carry a extra waterpump!
     
  10. Pontiac Slim
    Joined: Jan 16, 2003
    Posts: 1,188

    Pontiac Slim
    Member Emeritus

    put 106000 on mine b-4 a rebuild.... never had a prob but as mentioned I changed oil/filter every 2000 miles
     
  11. Deuces
    Joined: Nov 3, 2009
    Posts: 23,757

    Deuces

    My uncle had one in a '68 FIrebird.... He had that car for years and never gave him problems....
     
  12. I'd split that up, those early Corvettes are worth a small fortune and most of the big money guys are going to want to restore it and throw the OHC 6 away anyways.

    But it will help you if the engine runs and you can show people that it will. Some of the parts for those are unobtanium now, there are no replacements.
     
  13. squirrel
    Joined: Sep 23, 2004
    Posts: 55,942

    squirrel
    Member

    friend just bought one, complete, turns, for $150
     
  14. pdq67
    Joined: Feb 12, 2007
    Posts: 787

    pdq67
    Member

    I want to say that the oiling problems are caused because the hy-lifters a mounted stationary in closed end bores and adjust the rockers that then ride on the cam lobes. They don't work like the usual way right off the cam lobes up and down motion.

    This causes dirt in the oil to not circulate in and out like the oil normally does so gunks them up, leading to valvetrain problems!

    Right change the oil & filter frequently and add good old MMO and go!

    And the Q-Jet carb'd jobbers have stock, cast-iron split exhaust manifolds on them!! Way cool by me.. I've only seen one and it was propped up on it's pan sitting in the back of a garage years and years ago.

    I'd love to do a hopped up sohc'd 292" truck engine!!

    He, He!! I bet the sucker would run HARD for a 6-banger!

    Only other 6-banger engine, imho that I would like to mess with and it is the 275hp/Vortec dohc EFI variable cam timing on one cam 6-banger that came out. I wanna say that it was only in P/U's and maybe SUV's???

    Wiki GM engines and you will find reference to it.

    pdq67
     

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