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Thread: 5.3 build with bad lifter

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  1. #1
    Join Date
    Jun 2009
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    Washington DC
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    The '03 model year revisions cleared up the piston slap issue

  2. #2
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    sweet... check bearings, throw a cam in it, rodbolts and be good to go?
    Blessed be the Lord my strength which teacheth my hands to war, and my fingers to fight:
    Psalms 144:1

    Si vis pacem, para bellum

  3. #3
    Join Date
    Mar 2010
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    Paris, TX
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    I just tore down a 5.3 that had a lifter come apart. There was metal everywhere in the pan and the windage tray but very little in the pump screen and filter. For the most part the bearings looked perfectly fine. The main issue was the pin from the lifter roller bounced off the crank and busted a piston skirt before coming to rest in the bottom of the pan. The cylinder with the broke piston scratched the bore up. Now it will be a Iron LS1 build for me, ordered parts tonight.

    I say a good cleaning and check over before reassembly then bearings for safety, cam, and rod bolts. If you want a little bump in compression you could put on felpro gaskets. Vatozone carries them for like $20 a piece with a installed thickness of 0.040.
    Last edited by country_3030; 01-23-2011 at 02:27 AM.
    99' Silverado RCSB Z71: 5.7L Iron LS1, 11.2:1, Custom EPS Cam, Ported 862's,Ported TB, E-Bay Cold Air, E-Bay Long Tubes, Dynomax X-Pipe Exhaust, Electric Fans, Innovative LC-1, Self Built 4L60E, Circle D Pro Single Disc, 4:10 ValueTrac


    http://www.ls1truck.com/forums/image.php?type=sigpic&userid=7887&dateline=1270435  715

  4. #4
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    Crossett,Ar
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    Ill throw out my 2 cents. As stated above there is a chance there could have been some damage. If you decide to re ring the truck youd need to pull the pistons out anyway. It would give you a chance to check everything on the bottom end with a fine tooth comb. If it were me Id throw the 4.8 pistons in anyway for a CR bump that way. And the tr220 cam is a great performer for a DD truck if that is what you are going for.
    Completely off subject but If you were willing to get work done for the heads finding a set of 243s to mill and throw on there with the 4.8 pistons would be a very interesting combo for what you would have wrapped up in it

    06 Intimidator SS- Tuned, CAI -DD
    03 Silverado- Last incarnation 13.6... RIP
    Ls1, Pnp heads, Polluter camshaft, spray, 4k stall on the way
    "Seize the day like you seize your noodle" - Shin Chan

  5. #5
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    If you are going to do it, DO IT RIGHT THE FIRST TIME! Trust me it sucks to put rod bearings in on your back under the truck when it is 30°F.
    99' Silverado RCSB Z71: 5.7L Iron LS1, 11.2:1, Custom EPS Cam, Ported 862's,Ported TB, E-Bay Cold Air, E-Bay Long Tubes, Dynomax X-Pipe Exhaust, Electric Fans, Innovative LC-1, Self Built 4L60E, Circle D Pro Single Disc, 4:10 ValueTrac


    http://www.ls1truck.com/forums/image.php?type=sigpic&userid=7887&dateline=1270435  715

  6. #6
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    Im going to go over the bearings. The lifter didnt actually come apart, just locked up and took a cam lobe down .045" Lifter is completely intact but the rollers face has some cam materail built up on it. whats the difference between 706 and 862 heads? I thought by the time i got 243 and had them milled down they'd be about as good as a 862?

    Goal is a DD with the most power and torque possible on a easy budget, everybodys goal right?

    I've read you can keep stock converter with the tr220, ill probably go with the 112 for the idle. either heads, arp rodbolts, the thin headgaskets...

    all input is welcome

    Blessed be the Lord my strength which teacheth my hands to war, and my fingers to fight:
    Psalms 144:1

    Si vis pacem, para bellum

  7. #7
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    forgot to add, can someone inform me on lifters... just an overall knowledge between regular/ls7 etc
    Blessed be the Lord my strength which teacheth my hands to war, and my fingers to fight:
    Psalms 144:1

    Si vis pacem, para bellum

  8. #8
    Quote Originally Posted by Mang213 View Post
    The '03 model year revisions cleared up the piston slap issue
    Not in my 03...

    The Fleet...
    2003 Suburban- 5.4 L59 331CI 10:5.1 Compression -Built by ME
    2004 Avalanche- 5.7 LS1 -NOT built by me
    2005 Silverado RCSB- 5.7 LS6 -Built by ME

  9. #9
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    does NP still offer cam Packages?

    what will anyone guess my ET at?
    Blessed be the Lord my strength which teacheth my hands to war, and my fingers to fight:
    Psalms 144:1

    Si vis pacem, para bellum

  10. #10
    Join Date
    Aug 2007
    Location
    Honeywood, Ontario
    Posts
    6,994
    Good basic cam and bolts ons combo usually puts a RCSB in the 13's with the 5.3
    2006 Silverado
    Little Black Bitch

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