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Thread: Help with 5.3 Engine build in rock crawler

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  1. #1
    Will the stock rods handle 11:1?

  2. #2
    Join Date
    Sep 2008
    Location
    Arizona/Utah
    Posts
    3,939
    Quote Originally Posted by Bodie View Post
    Will the stock rods handle 11:1?
    Should do just fine, however, LS2 style rods would be better and are cheap. Arp rod bolts are a good idea.
    ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06

    waiting to go in... 3.90s, 214/220cam

  3. #3
    I tore the engine down today, looks like I am going to need to have it bored. I couldn't run a 6.0 piston could I?

  4. #4
    Join Date
    Sep 2011
    Posts
    1,235
    No, but it can be bored to ls1 specs which would make your 400hp goal more attainable. A high compression ls1 would make 400 pretty easy with the right cam and a little port work.
    99 rcsb silverado...... boosted.

  5. #5
    Is that .030 over? What are yall porting on a mild job? Port matched, or bowl work?

  6. #6
    I dropped the block and heads off today at Longs Machine. Can I do a .040 over without any kind of problems?
    87 Samurai 14b f&R 5.3/350/205 42s
    04 H2 NP tune 6" w/ 37s on 22x14s
    04 Dodge Laramie Cummins
    04 SRT10 w/twin turbo Cummins

  7. #7
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    3,581
    can go .120 but gotta becareful

    heres a little 53 I put together for my lifted jee

    http://www.youtube.com/watch?v=eXpA5...eNbygkIVUo4iFw


    GMT900 intake with 90mm tb, thumper 1 cam, ls3 manifolds with dual 2.5 exhaust, CAI this combo should make some decent rwhp for what I have into it

    specs are 219/233 553/537 109 lsa...using 08 injectors
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

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