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Projects 292 valves

Discussion in 'The Hokey Ass Message Board' started by 292newbie, Jan 26, 2020.

  1. 292newbie
    Joined: Jan 3, 2019
    Posts: 7

    292newbie

    Hello everyone, i need some guidance. I'm building a 292 inline 6.. where can I find flat top pistons and what brand do you prefer... Also where could someone find 1.94 inake valve (same motor).
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 46,862

    squirrel
    Member

    isn't the valve the same as the small block V8 valve?

    I don't know where to find flat top pistons, what compression are you aiming for? I'm putting dished pistons in the 292 I'm thinking about putting together soon.
     
  3. karl share
    Joined: Nov 5, 2015
    Posts: 103

    karl share
    Member

    Federal Mogul made flat top pistons for 292 chev six, we used them in our hyster fork lift when motor was rebuilt.
     
  4. Gofannon
    Joined: Feb 8, 2007
    Posts: 589

    Gofannon
    Member

    loudbang likes this.

  5. Hud I
    Joined: Jul 19, 2008
    Posts: 161

    Hud I
    Member
    from Tennessee

    The pistons that Karl are referring to are propane pistons. They are the cheaper way to flat tops. The other way is the custom piston makers. They are not so cheap. L Hud
     
  6. With todays gas I wouldn't use flat top pistons. A thin head gasket and possibly mill the head will get you all the compression ratio you can stand. A 292 has plenty of HP and tremendous torque. Its not a high RPM engine. The will certainly pull and haul a heavy load. and will use as much fuel as a big block doing it.
     
    Truckdoctor Andy likes this.
  7. squirrel
    Joined: Sep 23, 2004
    Posts: 46,862

    squirrel
    Member

    But are they still in production? If not, then you'll probably have to get custom pistons.

    I have Ross pistons in my Hemi, they make good stuff, although you get to pay good money for it.
     
  8. Hud I
    Joined: Jul 19, 2008
    Posts: 161

    Hud I
    Member
    from Tennessee

    The easiest way to wake up a 292 is put a 194 head on it. The 194 head is getting harder to find.
     
  9. Joe H
    Joined: Feb 10, 2008
    Posts: 945

    Joe H
    Member

    The 194 head will raise the compression, but the ports are so bad in it, you will need a bunch of porting to use the raised compression.
     
  10. Casual 6
    Joined: May 25, 2008
    Posts: 242

    Casual 6
    Member
    from Great NW

  11. 292newbie
    Joined: Jan 3, 2019
    Posts: 7

    292newbie

    I'm aiming for 10.5:1 or 11:1 compression. I have 194 head, 250 head and a 292 head... but no one has any information on cfm on 6 cylinder heads.. I'm waiting low end torque. So I'm wanting .060 bore. Flat piston. Roller rockers, but not sure on which head and valves
     
  12. 292newbie
    Joined: Jan 3, 2019
    Posts: 7

    292newbie

    I'm looking into Howard's hydraulic flat tappet cams. Just need to decide on what rpm range I'm wanting
     
  13. Hud I
    Joined: Jul 19, 2008
    Posts: 161

    Hud I
    Member
    from Tennessee

    If you are wanting torque and a good street cam. The 270 hyd. RV cam is the most common one . Has plenty of torque and will run also.
     
  14. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 5,138

    Ebbsspeed
    ALLIANCE MEMBER

    Sounds like your RPM range has already been decided. The 194 head doesn't breathe well, but doesn't have to at the bottom end.
     
  15. Joe H
    Joined: Feb 10, 2008
    Posts: 945

    Joe H
    Member

    here is a PDF with air flow numbers.
     

    Attached Files:

  16. DOCTOR SATAN
    Joined: Mar 21, 2014
    Posts: 711

    DOCTOR SATAN
    Member
    from okc

    I always ask my machinist his prices on parts....
     
    squirrel likes this.

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