Thanks James, I'm not set on hypatec pistons, but I'm just after a good set of standard bore pistons for a NA engine at a reasonable price. I was originally just going to buy genuine toyota but they are not available anymore, but I came across those hypatec pistons on the precision website and a quick internet search suggested they'd do the job for me and it seems the price is quite good.

I'll PM you in a couple of weeks about a price.

Is there any knowledge on the interweb I can hand onto the machinist about taking weight out of smallport crank?

Craig