G'day all. I am wondering if it is to possible to hone the bores out on a ZD30 without removing the head, while the engine is out of the vehicle?

It would mean having to remove the timing chain and rotating the cam shaft for TDC on each cylinder being honed. I am wondering if the lip at the top of the bore would be able to be removed in the process.

Also, is it possible to install pistons that will withstand higher temperatures than standard to prevent melting the top of the piston, (eg; ceramic coated, forged etc)?