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Technical 283 Block Questions

Discussion in 'The Hokey Ass Message Board' started by SUSQ, Aug 10, 2016.

  1. SUSQ
    Joined: Nov 5, 2012
    Posts: 98

    SUSQ
    Member

    While my son is away for the Fall semester (he's in the auto restoration program at Penn College) we will read as much as we can and source components.
     
  2. Gene Boul
    Joined: Feb 9, 2006
    Posts: 805

    Gene Boul

    I think the 57 265's were painted yellow and not he traditional Chevy orange. I'm possibly mistaken about this "fact" since I was 11 at the time!
     
    arkiehotrods likes this.
  3. SUSQ
    Joined: Nov 5, 2012
    Posts: 98

    SUSQ
    Member

    Initial measurements with my rather pedestrian digital calipers shows bores ranging from 3.75"- 3.890. Looks to be standard bore?
     
  4. ididntdoit1960
    Joined: Dec 13, 2011
    Posts: 1,030

    ididntdoit1960
    Member
    from Western MA

    265 standard bore is 3.75" - 283 standard bore is 3.875"
     
  5. SUSQ
    Joined: Nov 5, 2012
    Posts: 98

    SUSQ
    Member

    Sorry. Fat finger typing here. Bores range from 3.875" to 3.890".
     
  6. budd
    Joined: Oct 31, 2006
    Posts: 3,478

    budd
    Member

    how do I tell if I can bore my 283 out to 4"
     
  7. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    Sonic test.
     
    loudbang likes this.
  8. sunbeam
    Joined: Oct 22, 2010
    Posts: 6,220

    sunbeam
    Member

    1956 and 57 used a longer filter than 58 up in pass cars.
     
  9. SUSQ
    Joined: Nov 5, 2012
    Posts: 98

    SUSQ
    Member

    Having no side mounts, can this block be used with an engine cradle designed for SBC?
     
  10. mtkawboy
    Joined: Feb 12, 2007
    Posts: 1,213

    mtkawboy
    Member

    If you ever buy a 57 engine get a pilot bearing and try it in the end of the crank. If the hole is too big its a turboglide crank. Do not use it. I learned this the hard way after I had spent a ton of money on it. They make an aftermarket bearing you can use but the cranks are supposed to be inferior. Mine broke the crank and seized the motor at 6000 in high gear. Went for a hell of a ride. With as few turboglide motors as they made only I could end up with one. Of course that was 56 years ago when I was teenager
     
    loudbang likes this.
  11. SUSQ
    Joined: Nov 5, 2012
    Posts: 98

    SUSQ
    Member

    Bump
     
  12. SUSQ
    Joined: Nov 5, 2012
    Posts: 98

    SUSQ
    Member

    Thanks mykawbiy. Mines a Powerglide block. Appreciate the heads up!
     
  13. gas pumper
    Joined: Aug 13, 2007
    Posts: 2,957

    gas pumper
    Member

    I've had a Powerglide crank that the pilot bearing bore was undersized and not concentric. Just another thing to look at and be aware of with these old engines.
     
  14. If you mean the engine cradle that bolts to the front of the engine, the mounting holes are there(factory mounts). If you mean the tube type that bolts to the side mounts-nope.
     
    loudbang likes this.
  15. SUSQ
    Joined: Nov 5, 2012
    Posts: 98

    SUSQ
    Member

    That's what I thought. Thanks for confirming.
     
  16. ENGINENUT
    Joined: Dec 6, 2005
    Posts: 41

    ENGINENUT
    Member

    I think I have noted another difference in the 57' 283 that is found on no other year and I can't imagine why it exists. I have seen on 57 only, an enlargement of the block's waterjacket on the outer sides of the engine. It shows as an approx. 3/16" step about 1/2 " down from the deck. This is apparent in SUSQ's 1 st, 3rd, and last pictures on page 2. I have never found it on any other year and I don't know if it exists on 57' 265's. The engine numbers on the pad for the 265 ended in C, CD, or CE and most I have seen were in pickups and all I have seen were painted yellow--even in cars. I have bored and ran 265's bored to 3 7/8 + .030 and have never had a early 283 problem bored .125. We installed a 1/16" wall thickness sleeve in our 57 engine bored to 4" to correct a scored place and barely broke through to the water space. That's a total oversize of .250 to accept the sleeve.
     
    loudbang likes this.
  17. buffaloracer
    Joined: Aug 22, 2004
    Posts: 816

    buffaloracer
    Member
    from kansas

    Also need to remember when you are rebuilding it that the rear cam bearing is different on early small blocks. Newer ones can be altered to work.
    Pete
     
    loudbang likes this.
  18. Gary Addcox
    Joined: Aug 28, 2009
    Posts: 2,530

    Gary Addcox
    ALLIANCE MEMBER

    Hey there, B-B-B-B-utch, have you had any luck finding your stash that was stolen ? The floorshift for GM 3-speed ? Excuse the stutter.
     
  19. Gary Addcox
    Joined: Aug 28, 2009
    Posts: 2,530

    Gary Addcox
    ALLIANCE MEMBER

    That sounds lots better than the other measurements.
     
  20. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,695

    56sedandelivery
    Member Emeritus

    Unfortunately, NO. I don't think it's too high of priority with the police department. If something "falls" into their lap, they might do something. Along the same lines of "floor-shift for GM 3 speed", I bought a 55-57 Muncie 319. That's the Muncie 318 WITH a Borg Warner R-10 overdrive attached, and now I've been assembling the parts to get a working Hurst shifter based on an old Synchro-Loc. I found a NOS 55-65 Muncie 319 mount-rods-levers kit. Just a side project, with no car in mind to put it in. I'd like to have the Ansen Posi-Shift for it though. I did move what was left out of the storage locker and back home; @#$%^&* thieves! I am Butch/56sedandelivery.
     
  21. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    Butch, I didnt know you got ripped off. Theres a swap coming up here soon, pm me a listof what was taken, and I'll keep an eye out.
     
  22. sunbeam
    Joined: Oct 22, 2010
    Posts: 6,220

    sunbeam
    Member

    I've never been a fan of a front mount with a tail housing mount. Especially with an aluminum bellhousing the mounts are just to far apart.
     
  23. JOECOOL
    Joined: Jan 13, 2004
    Posts: 2,771

    JOECOOL
    Member

    I wish someone local would get all excited about 283's I have one running in a 57 complete with Powerslide and rear end . could be real cheap .
     

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