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Detroit, 7:11 AM
Sat Dec 5
26 posts in the last 24 hours

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    Dsmvwl  Admin  Promote to frontpage Approve user Ban user ×
    Image of Turboner Turboner
    10/03/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Great piece. The article's good, too ;)

    BTW, I think you left out a few camshafts...
     Reply
    Turboner was starred Turboner was unstarred
    Image of HoonThatFerrari HoonThatFerrari
    10/02/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Great post, Wodzilla! Both the pics & description. And congrats on your LS9 "Ben-gine".
     Reply
    HoonThatFerrari was starred HoonThatFerrari was unstarred
    Image of skierpage skierpage
    10/02/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    @Ben,
    The greatest post ever on this site, even better than Ken Imhoff's basement Lambo.

    Making things is vital to a country's soul. The heartbeat of America!
     Reply
    skierpage was starred skierpage was unstarred
    Image of Otto Suksumake Otto Suksumake
    10/02/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    I have to say, I think GM is the world leader in mass-produced engines.

    Now to apply their expertise in HP to fuel economy...
     Reply
    skierpage promoted this comment Otto Suksumake was starred Otto Suksumake was unstarred
    Image of skierpage skierpage
    10/02/09

    @Otto Suksumake:
    GM will be happy to sell you a Chevy Volt around November 2010 that gets infinite fuel economy for 40 miles, 230 MPG equivalent in "new math", and perhaps 50 MPG after the battery runs down.
     Reply
    skierpage was starred skierpage was unstarred
    Image of Tibu Jenkins Tibu Jenkins
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Strangely arousing I must say...

    @.@
     Reply
    Deartháir II: The Return promoted this comment Tibu Jenkins was starred Tibu Jenkins was unstarred
    Image of zeeboid zeeboid
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Huge Huge fan. ZR1 Pwns all for less. now if only I could get one painted with a big American flag. Some however may not be impressed.

    But if the engine were in front of me, I would be just as taken by it.
     Reply
    Edited by zeeboid at 10/01/09 10:23 PM zeeboid was starred zeeboid was unstarred
    Image of zeeboid zeeboid
    10/01/09

    @zeeboid: Baaa, edit removed das photo.
     Reply
    zeeboid was starred zeeboid was unstarred
    Image of UGAdawg UGAdawg
    10/01/09

    @zeeboid: Damn now that's good. :-)
     Reply
    Ben Wojdyla promoted this comment UGAdawg was starred UGAdawg was unstarred
    Image of Ben Wojdyla Ben Wojdyla
    10/01/09

    @zeeboid: i admit, i laughed at that.
     Reply
    Ben Wojdyla was starred Ben Wojdyla was unstarred
    Image of FTGDWolverineEdition'09 FTGDWolverineEdition'09
    10/02/09

    @zeeboid: Lol! 1 h-click for that!
     Reply
    FTGDWolverineEdition'09 was starred FTGDWolverineEdition'09 was unstarred
    Image of YankBoffin YankBoffin
    10/02/09

    @zeeboid: LOL. heartclick
     Reply
    YankBoffin was starred YankBoffin was unstarred
    Image of Elhigh Elhigh
    10/02/09

    @zeeboid: You get clicked. Sweet.
     Reply
    Elhigh was starred Elhigh was unstarred
    Image of tjanson tjanson
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Do they really use stainless head bolts? Why? Seems like a bad material choice for a high strength fastener that isn't in a corrosive environment...or is it not?
     Reply
    tjanson was starred tjanson was unstarred
    Image of Bonneville2000 Bonneville2000
    10/02/09

    @tjanson: Short answer: Yes, stainless head bolts. Better initial clamp load and reduction of clamp load loss over time. The A286 stainless steel alloy and microstructure has superior strength properties to handle the higher cylinder pressures battering the LS9 head/block joint.

    The A286 alloy also has a coefficient of thermal expansion that is closer to aluminum than conventional low carbon steel. With a coefficient of thermal expansion closer to aluminum, the stainless steel bolt is able to retain more clamp load for long term sealing integrity of the head gasket.

    Thanks to Brian and Dave, engineering technical specialists for cylinder heads and fastening for Chevy engines.

    Tom Read
     Reply
    Ben Wojdyla approved this comment Bonneville2000 was starred Bonneville2000 was unstarred
    Image of Quattro-luvr Quattro-luvr
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Dear Jalopnik,

    Please find my bill in the mail for my marriage therapy sessions. Since your article on the assembly of the ZR1 engine my marriage has gone downhill. My wife caught me "looking" at the centerfold pictures of your article.

    Thanks for your prompt payment.

    Quattro-Luvr
     Reply
    Ben Wojdyla promoted this comment Quattro-luvr was starred Quattro-luvr was unstarred
    Image of Alex Dunn Alex Dunn
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    I write processes to manufacture skin panels and jet engine parts for the latest fighter technology but this is way cooler...... and I'm a Ford guy.
     Reply
    Ray Wert promoted this comment Ben Wojdyla approved this comment Alex Dunn was starred Alex Dunn was unstarred
    Image of Elhigh Elhigh
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    That looks like awesome huge fun. I'd offer to trade jobs, but I couldn't do that to you.
     Reply
    Elhigh was starred Elhigh was unstarred
    Image of Prawo Jazdy and The Velocity Trumpets: I miss Deartháir II Prawo Jazdy and The Velocity Trumpets: I miss Deartháir II
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    This is like Penthouse Forum for me.
     Reply
    Prawo Jazdy and The Velocity Trumpets: I miss Deartháir II was starred Prawo Jazdy and The Velocity Trumpets: I miss Deartháir II was unstarred
    Image of YankBoffin YankBoffin
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Seven gaskets, eh? Did they just keep adding them until the head stopped leaking? Are they actually functioning as shims as well?

    Anyway, thanks for the excellent build tour.

    Oh, and those are the prettiest rockers I've ever seen.
     Reply
    YankBoffin was starred YankBoffin was unstarred
    Image of Number_Six Number_Six
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Ben, do you have any idea how many engineers would have worked to design this beauty? Would it be scores of them, each saying something like, "I designed the alternator bracket on the LS9", or is engine design done by smaller teams?

    /I only know how to break 'em
     Reply
    Number_Six was starred Number_Six was unstarred
    Image of lilwillie lilwillie
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Nice to see I am not the only one to wear the purple gloves.

    It would be a wise decision by any of you here who spin wrenches to take not of those silly looking unmanly gloves and wear them yourselves.

    7 years ago my hands looked like hamburger. My wife hated the touch and feel of them. Cuts, grease, grime and crap all the time from a full days work. My first son was born and I could see the grimace on the Dr.'s face when I was there. No matter how you wash, it won't come clean.

    7 years later my hands look like a gay hair stylists and when people who don't know me ask me what I do for a living they never believe I turn wrenches to make a buck.

    So take note, wear the gay-ass gloves and be a bigger man than those that don't. Plus the wife doesn't mind me playing around with clean hands.
     Reply
    lilwillie was starred lilwillie was unstarred
    Image of Deartháir II Deartháir II
    10/01/09

    @lilwillie hides autos in the attic: But... now your hands are no longer "ribbed for her pleasure"...
     Reply
    Deartháir II was starred Deartháir II was unstarred
    Image of lilwillie lilwillie
    10/01/09

    @Deartháir II: The Return:

    ...or for my pleasure. A fair trade off, to actually be able to get lucky.
     Reply
    lilwillie was starred lilwillie was unstarred
    Image of Elhigh Elhigh
    10/02/09

    @lilwillie hides autos in the attic: I wear the gloves. It means the difference between needing ten minutes to scrub hands, and having the citrus cleaner smell that the wife hates, or two minutes washing hands, and smelling faintly of Ivory.

    The guys that fixed my tractor's magneto wore the gloves, too.
     Reply
    Elhigh was starred Elhigh was unstarred
    Image of RLJ676-LS3 Commuter Car - for the environment RLJ676-LS3 Commuter Car - for the environment
    10/01/09

    In reply to How We Built A 638 HP LS9 Engine For A Corvette ZR1
    Too bad this isn't like "Build-a-Bear" and you got to take it home.

    Cool feature and what a day. Your job seems to have a lot of perks involving the ZR1 that mine lacks.
     Reply
    Goingincirclez promoted this comment RLJ676-LS3 Commuter Car - for the environment was starred RLJ676-LS3 Commuter Car - for the environment was unstarred
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