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235-292-302 inliners help

Discussion in 'The Hokey Ass Message Board' started by the pinstriper, Aug 29, 2012.

  1. the pinstriper
    Joined: Jun 2, 2011
    Posts: 248

    the pinstriper
    Member
    from duxford UK

    Another question for all those inliner guys on here, ive pulled a 235 and 3 speed manual from my 59 apache, purchased a 292 with no box, and a dos palmos intake manifold.

    I've look at ad many photos as I could see to see what looks the same, from what I can see the bell housing is the same from 235-302 as the 292 is the later engine.

    Would my inlet manifold fit a 302? The length between ports is no problem as the manifold bolts in singles to each port, it's the port shape I take it is different?

    Thanks joe
    [​IMG]
     
  2. Snarl
    Joined: Feb 16, 2007
    Posts: 1,639

    Snarl
    Member

    a 235 bellhousing is completely different than one for a 292.

    a 302 GMC doesn't share anything with a 292.

    If you have a 235 and a 292 in your posession, it would be pretty obvious if something is going to interchange or not....


    The 292 can use the same bellhousing as a V8. If you had a '55-59 truck V8 bellhousing, then the 292 could be bolted up to the '59 3spd.
     
  3. the pinstriper
    Joined: Jun 2, 2011
    Posts: 248

    the pinstriper
    Member
    from duxford UK

    I already no the differences between the 235 and 292, have the bell housing to mount my box also to the 292. Main question was the inlet ports on the 235-292 302gmc being the same shape
     
  4. Stovebolt
    Joined: May 2, 2001
    Posts: 3,531

    Stovebolt
    Member

    The 235 & 302 have round intake ports of different diameters.

    The 292 has rectangular ones.

    About the only thing interchangeable between the 235 & 292's are the harmonic balancer and the dizzy (both require modifications) and the timing gears
     

  5. RichFox
    Joined: Dec 3, 2006
    Posts: 10,020

    RichFox
    Member Emeritus

    An intake manifold from a 292 will not fit either a 235 or a 302. If you had a 235 manifold and spread it to fit the port locations on a 302, the ports on a 235 are still much smaller than a 302. In general you need to decide if you are going to run the 235 or the 302 or the 292 and get parts for it.
     
  6. the pinstriper
    Joined: Jun 2, 2011
    Posts: 248

    the pinstriper
    Member
    from duxford UK


    Exactly what I wanted to no! Thanks guys! As I have already got the high rise manifold on the 292, as this won't fit the 302 it looks like I'm sticking with the 292!
     

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