LS3 Valve Spring Upgrade - Southern Performance Systems
5:21
Added: 3 years ago
From: wtdutton
Views: 14,319
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  • nice

    Ls3guy 1 year ago

  • this was really helpful thanks

    vio333 2 years ago

  • hey what is the point of switching the springs, do they increase HP? just wondering.

    chevycamaro1976 2 years ago

  • cool

    ls6guy 2 years ago

  • I think the hardest part doing this is getting the head to stop moving around

    FourG6397GST 3 years ago

  • good info vid

    carolinavette 3 years ago

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