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Thread: Is it wise to build a motor w/ Aluminum rods and pistons

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    EX Super Mod TIGERJC's Avatar
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    Quote Originally Posted by TRYMY4.0
    Aluminum rods are lighter so obviously less mass to move equals quicker revs. But Aluminum rods, when they get hot they stretch and when they cool down then shrink back. So, the motor has to be built PERFECT for Aluminum rods or your smack all your valves when the engine heats up.

    But i heard the same also, aluminum rods dont last as long. if it is just a weekend warrior, sure. But Id get the H beams.
    I knew that I was forgetting something

    I am looking at either going the supra or evo route when it comes to my next car. The only miles my car will see, will be the miles to the treadmill in Mexico and also trips down to Reynolds.

    I just want a dependable motor that can atleast make it to 20-25k miles, if it gets more than that-->. Nothing is made to last forever, but I dont want to be tearing the motor down ever oil change either
    Last edited by TIGERJC; 01-10-2008 at 09:33 AM.
    2006 Evo IX - Bolt ons

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    C7 On_Her_Face's Avatar
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    Quote Originally Posted by TIGERJC
    I knew that I was forgetting something

    I am looking at either going the supra or evo route when it comes to my next car. The only miles my car will see, will be the miles to the treadmill in Mexico and also trips down to Reynolds.

    I just want a dependable motor that can atleast make it to 20-25k miles, if it gets more than that-->. Nothing is made to last forever, but I dont want to be tearing the motor down ever oil change either
    you better get a supra or you can't come bowling with us anymore

    lol jk goodluck with whatever you find

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    All bark, no bite.
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    Umm... the LS7 uses titanium rods. I doubt GM would warranty the car to 100,000 miles if they go bad after 10 pulls on a dyno. Of course they don't rev their cars to 10,000RPMs either, but I doubt a Supra would be seeing too much 10,000RPMs.

    Titanium withstands heat the best, dissipates heat the best, it's lighter and is stronger than steel/aluminum. There's a reason it's so expensive. They apparently work well in low revving, big motors.

    If money were no object, titanium is the way to go. Carillo and Oliver are proven performers so you can't go wrong with those either.

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