Demon seed
just FYI - 440 Source's response for wrong machined parts was much the same - send it back, wait 6-10 weeks, we will give you a call!! - and you get to pay shipping, customs, etc both ways.
It only cost me and $110 to get a set of new rods reworked here in Calgary to fit as it was not worth all the hassel.
Check and double check - or make sure you are dealing with a very reputable machine shop.