have'nt got a clue how much was machined off crowns of pistons to achieve 8.2.1 comp ratio.

if extra machining is required surely this is gona make the pistons weak by taking an extra 2mm + off?

don't wana f**k them up as they cost me best part of 500 big ones including the machining i had done before i took delivery!!

something ain't right need to get to the bottom of this