OEM Rocker Arm Side Play

PRH said

my big takeaway from this thread is that I won’t be using/recommending the Melling SBM rockers.
And that if someone decides to use them, they really need to look them over very carefully and mock everything up before assembling.

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No I would not recommend them either. It’s a budgetary issue and the only reason I’m fixing them. Bottom line, Don’t buy them unless you intend to fix them. Side clearances is not the issue which was the initial concern. And don’t buy Speedmaster heads already assembled and expect to run factory style rockers. :)