Hard welded rockers, springs 340 lift cam

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  • Texasgs
    • Feb 2026

    #1

    Hard welded rockers, springs 340 lift cam

    How important are hard welded rockers on a cam about 340 lift on a hot street engine. It wont get revved like a drag bike, will a good set of stock rockers survive with a good top end oiler. What are the minimum strength of valve springs to keep the valves from floating to say 10 grand with a cam like this.
  • rapidray
    Forum Guru
    GSResource Superstar
    • Oct 2006
    • 8195
    • So Cal

    #2
    Not needed on the hard welds & stock springs will work but stiffer springs will be safer. You can shim the stock springs to up the pressure to work with those cams if they are under 15-20000 miles. Ray.

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