283 engine build

Discussion in 'High Performance Modifications' started by Indianajones, Jan 17, 2018.

  1. tom3

    tom3 Veteran Member

    11,053
    135
    Aug 1, 1999
    ohio
    Used to bore those engines 1/8 inch for a "301" back in the day, sometimes worked, sometimes heartache. Squealing the tires at will requires torque, can't get there with that block. Other wise, new pistons (hy-po pistons for those engines had a 1/8 in dome, those are something radical), the 305 heads mentioned, a cam to the spec of the old 327/350hp grind hydraulic will make for a fun streetable small block.
     
  2. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

    9,471
    253
    Nov 4, 2004
    Ringgold, GA
  3. cadillac_al

    cadillac_al Veteran Member

    635
    39
    Apr 22, 2015
    Maine
    It sounds like the 76cc chamber heads may be about right for those pistons. I can't even remember what the old 12:1 pistons look like but this engine may have them or something close. I'd run it if it was cheap enough. I want to build a 283 for land speed racing anyway so I would make it work if it was in my neighborhood.
     
  4. dcozzi

    dcozzi Veteran Member

    2,250
    55
    May 1, 2002
    Phoenix, AZ
    Damn, that piston sits low in the hole! That is going to throw off your calculations a bit.
    A wild guess is it has between 11.5:1 and 12:1 right now.
     
  5. Lowend

    Lowend Administrator. .a car, a man, a maraca. Staff Member Lifetime Gold Member

    14,474
    274
    Mar 25, 1999
    San Jose, CA, USA
    This thing sounds like a basket case of an engine.
    Save your customer from themselves, start with a different platform.
     
    PalmbchZ28 likes this.
  6. tom3

    tom3 Veteran Member

    11,053
    135
    Aug 1, 1999
    ohio
    Buy a new 350 crate engine for $1400 shipped. Probably the same power as a radical 283, and way more torque.
     
  7. hogg

    hogg Veteran Member

    3,148
    27
    Dec 29, 2000
    pegram,tn.,cheatam
    The only way i would have a 283 for street would have to be a very light car.We use to bore 283's out all the time .120 ,flat tops, calling them 301's. I thank the factory 302 had the larger mains,large domes as 350 's did. Had a301 in a 64 ss 4 speed ,posc.,chevel way back when,,.solid lift cam, called 30 30 sold lift cam and 64cc 327 ,202valve heads ,,Run 7,000 rpm all the time , would smoke the tires all the way to 5,000 with only me in it ,put one or two more people in it and it was hard to get it rolling.
     
  8. Mwilson

    Mwilson Veteran Member

    i have run domed pistons most of my life with 350's and 62-64cc heads & pump gas, I would do the math and see where they put you
     
  9. mark wagner

    mark wagner Veteran Member

    2,125
    16
    Jul 31, 1999
    Saylorsburg Pa. USA
    find an early 327 block with the smaller main bearing journals and use the 283 crank and rods to build a 302. later 327s had large journals like the 350
     
  10. 71RS6SPD

    71RS6SPD Veteran Member

    203
    7
    Nov 14, 2016
    I ran a 283 in my 71 rs for years back in the 70's. It was great! It had a big cam and and locked (simultaneous) secondaries (lol) on a 850 holly! Spun up to 7k. I smoked the tires a lot!
     

Share This Page