Breaking in new roller cam
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Breaking in new roller cam

  1. #1
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    Default Breaking in new roller cam

    We had a blown injected 522, but we put the induction on another motor and installed a tunnel ram with dual 750's for the time being. We also had the cam reground and installed a mechanical fuel pump. We are using the same solid roller lifters so I'm assuming there is no break in required for the cam.

    However we did use assembly lube when we installed the cam and the fuel pump drive. Will we need to replace the oil right away?

    In it's previous configuration we were running 20/50 royal purple. Should we stick with the same oil? Can we switch to a different synthetic, or possibly a blend? 14qt of royal purple is pretty pricey, but we have no problem buying it and changing it often if we need to.

    Sorry for the dumb questions, but I want to make sure we don't shorten the engine life.

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  3. #2
    "Need For Speed" Gearhead's Avatar
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    Quote Originally Posted by husqy510 View Post
    We had a blown injected 522, but we put the induction on another motor and installed a tunnel ram with dual 750's for the time being. We also had the cam reground and installed a mechanical fuel pump. We are using the same solid roller lifters so I'm assuming there is no break in required for the cam.

    However we did use assembly lube when we installed the cam and the fuel pump drive. Will we need to replace the oil right away?

    In it's previous configuration we were running 20/50 royal purple. Should we stick with the same oil? Can we switch to a different synthetic, or possibly a blend? 14qt of royal purple is pretty pricey, but we have no problem buying it and changing it often if we need to.

    Sorry for the dumb questions, but I want to make sure we don't shorten the engine life.
    Husqy,

    No, there should not be any break in required with roller lifters on a roller camshaft. I do however like to place the rollers back in the same hole over the same lobe they were run in on, although this should not be mandatory, especially since the cam is reground. Parts do have a "wear in" cycle and the lifters lap themselves into the bores, etc., but it is not a critical event. I think you can run the oil for awhile if that is all you did was change the intake up, etc.

    IMO you can switch oils too. I like to stay with a major brand oil, but keep a viscosity that will match your operating temperature. Although the RP is a good product, you sure don't have to run it.

  4. #3
    Some guy obnoxious001's Avatar
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    Quote Originally Posted by husqy510 View Post
    We had a blown injected 522, but we put the induction on another motor and installed a tunnel ram with dual 750's for the time being. We also had the cam reground and installed a mechanical fuel pump. We are using the same solid roller lifters so I'm assuming there is no break in required for the cam.

    However we did use assembly lube when we installed the cam and the fuel pump drive. Will we need to replace the oil right away?

    In it's previous configuration we were running 20/50 royal purple. Should we stick with the same oil? Can we switch to a different synthetic, or possibly a blend? 14qt of royal purple is pretty pricey, but we have no problem buying it and changing it often if we need to.

    Sorry for the dumb questions, but I want to make sure we don't shorten the engine life.
    You could always call the guy who got the cam done for you.

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  6. #4
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    Quote Originally Posted by obnoxious001 View Post
    You could always call the guy who got the cam done for you.
    LOL yeah sure, That would be WAAYY to easy

  7. #5
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    You could always call the guy who got the cam done for you.
    Way too easy! Plus I didn't want to wear out my welcome. You've invested a lot of time helping me with our builds, and all out of the goodness of your heart.

  8. #6
    Some guy obnoxious001's Avatar
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    Quote Originally Posted by husqy510 View Post
    Way too easy! Plus I didn't want to wear out my welcome. You've invested a lot of time helping me with our builds, and all out of the goodness of your heart.
    No problem, whatever I can do.

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