Diamond Piston ?

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by billy408stroker, Sep 7, 2013.

  1. What would cause this on these diamond pistons...My friend has only ran these a few weeks and he changed heads and saw this..What would cause this ? 3 or 4 pistons have this in the same area only...

  2. detonation...
    Ive seen some out of a tractor engine that looks like some one sand blasted the whole piston from running too lean.

  4. Correct that is from detonation...I'd just knock any rough edges off those dimples of any

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