Guest 81na ZX Posted August 26, 2003 Share Posted August 26, 2003 I'm having troubles finding this info anywhere... I'm looking for the intake valve size on a RB25 and 26 and any aftermarket ones (i.e. the JUN is xmm oversize) Also, the dimension of the intake port on the 25 head. Quote Link to comment Share on other sites More sharing options...
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