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How to decide on which valve spring

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  • #46
    that 1000 dollar one on craigslist would be perfect for you.
    you would need a special crank
    Don't worry about what you can't change.
    Do the best you can with what you have.
    Be honest, even if it hurts.

    "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; Its inherent virtue is the equal sharing of misery" ... Winston Churchill

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    • #47
      Originally posted by 91CoupeMike View Post
      Sigh. I was asking a question about piston speed.

      Second time I've stated this.
      are you racing in formula one? piston speed would never come into the consideration for a street engine build for me. cubic inches trump any worry about "piston speed" when you are going with a 4.125 after market bore. if you are not class racing any thoughts of de stroking is crazy....

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      • #48
        Originally posted by broke again View Post
        are you racing in formula one? piston speed would never come into the consideration for a street engine build for me. cubic inches trump any worry about "piston speed" when you are going with a 4.125 after market bore. if you are not class racing any thoughts of de stroking is crazy....
        I was more so asking about strength. Lower speeds are easier on the pistons.

        I would build a short stroke 347 before I would a long stroke 347.

        320rwhp. 7.67 @ 90mph 1.7 60'

        DD: 2004 GMC Sierra VHO 6.0 LQ9 324whp 350wtrq

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