bought some flat top z16 pistons .30 over, new bearings etc and then dropped everything off at the engine re-conditioners for machining and checking etc,
two weeks later they rung me and said the front cover was stuffed when it came out of the acid bath, next day dropped a replacement off only for them to tell me that my block was already bored .40 over


Am now abit stuck. Have rung sta parts and they have no l16 pistons in stock and can't get any either, and only have one set of z16 pistons left at .20 over and won't be getting anymore.
I have another l16 block here which i am assuming is standard bore but has a huge pit in one of the cylinders.
I have thought of these solutions but input into what to do would be apreciated:
-Bore and re-sleve my spare block to fit my new z16 pistons
-i have a set of z18 semi flat top pistons here, could i bore out my good l16 block to 85mm??? and would these pistons work on l16 rods?
-Find a set of .40 over l16 standard pistons somewhere