Looking to increase CR on my mirage. Currently on SOHC 4G92 head & 4G93 block with Toyota 4AG-ZE low compression pistons. Previous owner's plan was to turbo the car but dint get around to do it. I would like to keep it as NA and planning to bring CR to 10.5/11:1, RON 97 with Unichip piggyback.
1 - Will I be able to fit in 4G92 Mivec pistons to my 4G93 block with ease? Will the pistons be able to clear and not knock into the valves?
2 - Will I have to skim the block?
3 - What thickness of gasket to use?
4 - How about timing belt?