Hi Mate,
have another set of rods now,
the prob with the RV8 pistons are the pins are press fit not fully floating, and the pistons have no way of using clips.
On another note:
the engine should be on its way to V8Developments in Spalding in the next week or so,
blocks being done with a set of 8 tophat liners,
and the bottom end is going to be lightened and fully balanced :-)
cost is £1500 though :-(