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Info on Engine combinations

This is a discussion on Info on Engine combinations within the Internal Engine forums, part of the LSx Technical Help Section category; Hello everyone, i have seen several different engine combinations listed in here. Can someone eplain a 408 to me please. ...

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    Junior Member Bama99z's Avatar
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    Info on Engine combinations

    Hello everyone, i have seen several different engine combinations listed in here. Can someone eplain a 408 to me please. I am ols school 383,377,406
    Thanks,
    Eric

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    Veteran Hi-Po's Avatar
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    Most 408's =

    LQ4/LQ9 Iron block - 4" bore

    Bored .030 over

    4" stroke crank

    408

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    Junior Member Bama99z's Avatar
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    Hi-Pro
    Thanks for the info. I am in the process of tyring to decide exactly what I want to do to Z to get more out of it. Currently it is bone stock with a flowmaster muffler only. Where would you begin? What can i do to get the most out of it with out spending alot. I have two teenagers in Collegue

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    Veteran Hi-Po's Avatar
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    Depending on what series FM... maybe sell it. Pacesetter Long tube headers, magnaflow catback. Or True duals if you can find them cheap.

    LS6 intake.

    Lid

    That will get you started.
    370 CI - Twin 6766 Turbo - Jakes stage 5 4L80E - MWC 9" - Holley Dominator

    Build in progress...

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    Veteran Hi-Po's Avatar
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    Also, Look into getting sub frame connectors. Ive only heard of one person out of thousands nay say them. They are needed and will protect your car/investment.

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    Junior Member Bama99z's Avatar
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    I am not for sure exactly which FM. I was thinking of getting Nelson to program my computer first of all. I have heard that having that done could free up 15~20 for a factory motor. Have you heard anything about that.

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    Veteran Hi-Po's Avatar
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    Quote Originally Posted by Bama99z View Post
    I am not for sure exactly which FM. I was thinking of getting Nelson to program my computer first of all. I have heard that having that done could free up 15~20 for a factory motor. Have you heard anything about that.
    Yea, theres always alittle something to be gained from the factory tune. If your auto they can work with your shift points pressures if you wanted. I would wait untill after doing some kind of mods before spending money on a tune though.

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    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by Hi-Po View Post
    Also, Look into getting sub frame connectors. Ive only heard of one person out of thousands nay say them. They are needed and will protect your car/investment.
    That would probably be me,,,,I never did fit into the groupies that well

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    Do your mods then get a tune to optimize your mods. That will keep you from going back to get your tune touched up.....

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by Hi-Po View Post
    Also, Look into getting sub frame connectors. Ive only heard of one person out of thousands nay say them. They are needed and will protect your car/investment.
    but most people think SFC will prevent the torque dents on the rear quarter panel ..unfortunatly they dont..that is caused by wheel hop..the SFCs help tighten everything up and keep your chassis from twisting too much and making creeks and gaps appearing

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    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by shady milkman View Post
    but most people think SFC will prevent the torque dents on the rear quarter panel ..unfortunatly they dont..that is caused by wheel hop..the SFCs help tighten everything up and keep your chassis from twisting too much and making creeks and gaps appearing
    Hmmm, I've never gotten dents in any of my 4th gen quarter panels unless some dumb mother(#$%( hit it with something,,,but I won't go there

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    Veteran Hi-Po's Avatar
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    I have 3 very small dents on the passenger side fender. It does happen.

  13. #13
    cutting and welding mark21742's Avatar
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    I agree with Hi-Po, if your an a4, I'd get headers and a stall, then have it tuned.....that should keep you happy for awhile.
    I deleted all torque management, optimized shift points and pressures, and shortened shift delay......that right there made it a completely different car, with down right brutal shifts.

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