How big of a cam can I throw in?

Magnum Engine Swaps

  1. Robert Corrigan

    Robert Corrigan Detroit Rob

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    I am building a 5.9 magnum for my 1965 Barracuda. I am trying to figure out how big of a cam can I install without changing out rocker arms and push rods? I have already gotten installed the Hughes kit 1110 springs and retainers. I was recommended the Hughes cam ser1418ALN-10 they call the "steam roller" SB HYD RLR CAM 214/218 -110ºLSA NEW CORE but didn't want to short change myself? I also thought it might be designed for a truck type application? Advise on other cam companies or the above cam would be awesome. Just about to pull the trigger on a cam so thought I would throw my question out to the experts.
     
  2. dano

    dano Evil Handy Man

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    What is the rest of the combo and intended use? Manual or Auto? Willing to buy a converter if auto? Are the heads being rebuilt? Are you willing to degree the cam?
     
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    • moparmandan

      moparmandan FABO Gold Member FABO Gold Member

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      • 512Stroker

        512Stroker We are all here because we are not all there.

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        Is it a factory roller blook?
        LA retro-fit hyd rollers are a pain in the ass I can not recommend the use of them.
         
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        • Bobzilla

          Bobzilla Well-Known Member

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          I measured this once. Details are in this thread, post #18:
          How fast can you go with a Magnum? Who has the quickest setup?
           
        • RustyRatRod

          RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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          Call Hughes and ask them. That's their springs and they can give you a really good idea on the cam size limitations.
           
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          • doug 371

            doug 371 Well-Known Member

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            3/4
             
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            • dano

              dano Evil Handy Man

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              3/4 RV Cheater Saturday Nite Special Cam now with more lope!!
               
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              • Demonracer

                Demonracer 71 Demon 00 Ram 16 Chrysler 300S 05 Caravan FABO Gold Member

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                Just remember, bigger is not always better in cams & carburetors.
                 
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                • 75slant6

                  75slant6 Well-Known Member

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                  I think I’m gonna replicate this mild build that @RAMM did a few years back. Not crazy hp numbers but strong on the bottom end. The cam is a 264/270

                  360 TrueStreet Magnum Build
                   
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