Magnum crate motor valve train noise

Magnum Engine Swaps

  1. joes68340s

    joes68340s Well-Known Member

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    I have had both the 300 hp crate and the 380 hp crate motors lifter or lifters tick sound, just wondering why these valve trains are noisy.
     
  2. RustyRatRod

    RustyRatRod Weenie idiot loser. FABO Gold Member

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    Could be the camshafts. If they are a really fast rate, they are kinda rough on the valve train. Smack valves open and slam them shut. All that will make noise.
     
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    • joes68340s

      joes68340s Well-Known Member

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      Ok I’m just not that familar with hyd roller cam. Just thought they would be quieter.
       
    • RustyRatRod

      RustyRatRod Weenie idiot loser. FABO Gold Member

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      It's all dependent on who grinds them and what lobe and "all that there stuff".
       
    • MRGTX

      MRGTX Well-Known Member

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      My Magnum 300 is occasionally noisy too...or maybe I only notice it occasionally.
      I don't have any insight as to why but it's another point of anecdotal evidence...
       
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