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ring job or rebuild?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by **DONOTDELETE**, Sep 3, 2001.

    i have an ol' 350 that runs good and doesn't use much oil. i'd like to tear it down and have it honed out and just do a ring job on it. what are acceptible tollerances for this? say 10 over? just trying to be cheep and save on some machine costs. i'll add a new oil pump, timing set and new cam while i'm at it.

    <font color=blue>American Pie 2-"Have you seen my flute?" "Yeah, I stuffed it in your box."</font color=blue>
     
  1. DesertDueler

    DesertDueler 1/2 ton status

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    If your going to spend the money on getting it bored, might as well go .030 over, and buy new pistons. Pistons are cheap. You can find rebuild kits for 150 bucks.

    86 Jimmy 4"lift 35"MTRs Other cars 69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  2. CaptCrunch

    CaptCrunch 1/2 ton status

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    The only way you can really tell if you can get away w/ just a hone job is to rip it down and see how much ridge is on the cylinder wall... if you can feel one you are pretty much best off w/ a small overbore and pistons/rings. I say bore it over and make her a 355... or get crazy and go for the 383 [​IMG].

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  3. Brians 60s

    Brians 60s 1/2 ton status

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    I think rebuilding that 400 would kick ass. Next best thing would be to turn the crank and put it in 350. what do ya think?
    going with 56's would help out a lot as well.

    IT'S A 1 TON THING.... IF I HAVE TO EXPLAIN IT, YOU WOULDN'T UNDERSTAND!!!
     
  4. ftn96

    ftn96 1/2 ton status

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    Honing and doing a ring job......Hmmm. YOu'll have more fun getting the rings to fit with a .010 hone job than if you go with a standard size boreing and new pistons and rings. So my advise would be to go with the .030 over and get some new pistons. You can spend anywhere from 19.95 each on the pistons all the way up to and maybe more than 100 each.

    tRustyk5 for President!!![​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  5. P.A.W has an overhaul kit for $80. it just has rings, bearings and gaskets. i was thinking this would work for an engine that was in desent shape, just needed to be freshened up. i do have two other engines that need total rebuilds- but i don't think this one does. once again- i was trying to be cheep. ok... now you can all lecture me on doing it right the first time.

    <font color=blue>American Pie 2-"Have you seen my flute?" "Yeah, I stuffed it in your box."</font color=blue>
     
  6. Mreetz

    Mreetz 1/2 ton status

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    Hey, I'm all for doing what needs to be done for now and gettin it runnin. I wish I could do everything right the first time too!! That shortage of funds always seems to keep me in line tho.............

    1984 K-5
    4" lift
    35x12.5 MTs
    buildin a 400 for it, any info greatly appreciated
     
  7. dyeager535

    dyeager535 1 ton status Premium Member

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    You need to have cylinder wall taper checked. If its over (again, generally accepted number) .005, then you need to overbore.

    IMO, an overbore of .030 or even .060 is worthless. You are destroying a perfectly good block (no more rebuilds at .060 over without sleeving) for no significant gain.

    IF NECESSARY, overbore the smallest amount you need to, like .010 or .020. Then, when you have the time, funds, and/or necessity of doing it "right" later, you still have a block to work with, with lots of meat left in the cylinder walls.

    Friend rebuilt a 400 with just a hone and new rings, less than .005 taper.(right at though) Runs fine, doesn't smoke, and has been used (sometimes hard) for about 5 years now.

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     

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