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  1. #1

    Default Elgin Roller Tip Rockers

    Has anyone tried using the Elgin roller tip rocker arms? I have been running the Comp Cams Magnum roller tip rockers but have had trouble with the pivot ball area turning blue. The Elgin rockers come with dichromite pivot balls and the rocker is black, like it is treated with something. This is in a USRA SBC hobby stock engine with EQ heads 9.5:1 compression and an aggressive solid camshaft.

  2. #2
    Join Date
    Sep 2009
    Posts
    561

    Default

    In my opinion, based on math and experience, at lifts lower than .475ish, the roller tip costs more, has more parts to fail but doesn't net anything positive. The reduced friction comes from the trunion NOT from the roller tip. The roller tip contact area on the valve stem is very small and doesn't provide the roll as advertised for valve guide life. Careful planning and measuring of the push rod length to get the sweep on the valve stem to .060 or less and somewhere in the middle 2/3rds of the stem tip using a high quality "sliding shoe" type rocker will save weight, save money, and work just as well.

    With either type the ball the is the heat and friction zone so feeding it plenty of oil is very important as well as returning that oil back to the pan.

    I'd take the lifter apart and clean them, make sure the band doesn't exceed the oil galley holes in the lifter bores at max/min lift, make sure the lifters are rotating properly, clean the passages in the pushrods and make sure the pushrod and rocker oiling holes line up properly. This should provide oiling for lubrication and cooling to the fulcrum balls so your parts have a long happy life.

  3. #3
    Join Date
    Jul 2007
    Posts
    2,998

    Default

    Quote Originally Posted by hobby28 View Post
    Has anyone tried using the Elgin roller tip rocker arms? I have been running the Comp Cams Magnum roller tip rockers but have had trouble with the pivot ball area turning blue. The Elgin rockers come with dichromite pivot balls and the rocker is black, like it is treated with something. This is in a USRA SBC hobby stock engine with EQ heads 9.5:1 compression and an aggressive solid camshaft.
    comp are much better

    remove your oil restrictors in the back of the block
    My ignore list... copy pasted. Which means if your on here I DONT see your posts.

    ALLDIRT a1driver a25rjr balljoint balljoint_ calverton carowner73 CIRF Clayton_Wetter decrate61 dirtdobber45 dirtman007 frontrunner gator 49 LITE--OUT Raceready

  4. #4
    Join Date
    Feb 2015
    Posts
    163

    Default

    Not sure if the black bodied Elgins you're referring to are the Black Ice ones but if so that's a heat treated process they claim makes the metal as hard as possible. I'm not aware of them having that in rollertip style though. If, like lizardracing says, you're not running a ton of lift I's take a look at them. They're inexpensive enough.

  5. #5

    Default

    Thanks for the replies. I have widened the oil band on the lifters, I have suspected a lack of oil all along.

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