rocker arms for my SBC 350: full roller vs roller tip only

Discussion in 'Engine Topic' started by need-for-speed, Jan 12, 2018.

  1. need-for-speed

    need-for-speed Veteran Member

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    Feb 7, 2003
    Conroe, TX
    I need to replace the aluminum full roller rockers. They are cheapie Erson's and 3 or 4 of the roller tips don't feel like they are rolling smoothly.

    This is a 5800 RPM engine. I can save some coin by having "just the tip" :D roller vs the fulcrum too.

    Is it a non issue since this is just 5800 RPM 355?
     
  2. budro6968

    budro6968 Veteran Member

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    Apr 2, 2016
    Jax Florida
    You should watch This,
     
  3. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Nov 4, 2004
    Ringgold, GA
    Here's a pretty good video Frieburg did on Engine masters. I've always been a full roller or stay on the porch type, don't believe in the roller tip only.

    Edit - lol treed by Budro, pulled video.
     
  4. budro6968

    budro6968 Veteran Member

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    Apr 2, 2016
    Jax Florida
    That's funny
    you just posted the same thing. It was good to watch.
     
  5. need-for-speed

    need-for-speed Veteran Member

    642
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    Feb 7, 2003
    Conroe, TX
    Wow - very interesting !! My little eddy heads have 3/8 studs. :(
     
  6. need-for-speed

    need-for-speed Veteran Member

    642
    2
    Feb 7, 2003
    Conroe, TX
    It definitely shows that roller tip only is not worth it.

    Since my (cast recip assembly) engine and cam is only good to 5,800 rpm, and I have 3/8 studs, the plain 'ol stamped are looking like the sensible choice.
     
    budro6968 likes this.
  7. budro6968

    budro6968 Veteran Member

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    Apr 2, 2016
    Jax Florida
    Are you going to upgrade to 7/16? I never thought about the difference until I watched the Vid. Can you imagine having a job like that. Get paid to see if something might break. No wonder they are in such a good mood.
     
  8. RS1979

    RS1979 Veteran Member Lifetime Gold Member

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    Jun 18, 2013
    Memphis, TN
    That would make it fun to go to work.
     
  9. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Nov 4, 2004
    Ringgold, GA
    Depending on cam, or more on springs, I doubt there will be gains with 7/16 studs at 5800 rpm. Now stepping up above 6500, I can tell you it will make a difference.

    OP - what is you cam and spring combo?
     
  10. need-for-speed

    need-for-speed Veteran Member

    642
    2
    Feb 7, 2003
    Conroe, TX
    Yes - what a great job !!

    I didn't consider that (7/16 vs 3/8) either until I saw that video.
    Based on the fact that I have a 5,800 RPM engine, I'm not sure if it's worth replacing the studs. It's a cast rotating assembly and I don't rev it that much.

    I'm wondering if I may do just as well to use stamped steel rockers.

    Q: even with my edelbrock heads, if I go with stamped rocker arms, I assume I would just need std length 7.800 in pushrods?
     

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