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Thread: How can I tell if rocker arms have been hard welded?

  1. #1
    Paul.S Guest

    Default How can I tell if rocker arms have been hard welded?

    Is there a way to tell if a set of rocker arms have been hard welded? Also, will putting a "new" set of hard welded rockers on a used camshaft be fine? Also, I have read that hard welded rockers can actually eat up some camshafts depending on how hard the cam is. "Hot Cams" is the brand I read about having that problem. My cams are old Vance & Hines. Think that would be an issue? They are .340 lift. The rockers still look great but my head builder might be putting in heavier springs and I would hate for those to eat up my rockers. Thanks

  2. #2
    Join Date
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    Look around the edge of the pad. You should be able to tell. Old V&H cams would be fine.
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  3. #3
    Paul.S Guest

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    Quote Originally Posted by Big Jay View Post
    Look around the edge of the pad. You should be able to tell. Old V&H cams would be fine.
    Thanks. I compared mine to another stock set and they look the same. My machinist said I should be fine without the hardweld rockers with just a .340 cam.

  4. #4
    Join Date
    Jan 2013
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    You will be fine .340 lift cams are very mild cams. I would install a set of APE valve springs and titanium retainers. Then have the spring pressure set a 45lbs.
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  5. #5
    Join Date
    Jan 2013
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    Also if you have hard weld cams then use hard weld rockers and you have billet cams use stock rockers.
    My stable
    84 GSX1100EFG-10.62 @ 125 mph 64'' W/B.
    85 GS1150-9.72@146mph stock W/B.
    88 GSXR1100-dragbike 9.18@139.92mph/5.68@118mph.
    98 Bandit 1200-9.38@146mph/6.02@121mph.
    90 Suzuki GS 1425cc FBG Pro Stock chassis 5.42@124mph
    06 GSXR750 10.44@135mph
    00 Honda elite 80 pit bike

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