im thinking to go for high compression pistons so if you may answer these questions
how much compression should i get ?
do i have to port my heads ? better or not a problem?
what is the problems may i face? heat, sounds?
Your gonna want a new full rotating assembly in my opinion. prices range from 1400-2000 pending on brand and whos selling it.
P&P the heads you will gain alot out of them. If your staing N/A which I believe so get Patriot stage 2 heads or the Trick Flow heads. get better numbers
I dont think you will face any heat problems but upgrade the water pump to be safe. Maybe upgrade the radiator? and get a 180 thermo? stock thermo is 192 correct?
Upgrade to dual fans. But the shop you go to will know. I dont think you will run into heating issues though.
Right now I have a savings built up since Im looking at running a 5.4L swap staying N/A. Running stage 2.5 cams and Heads Port and polish.
CR will be around 10.82:1 maybe a little higher.
Best thing to ask is what power range do you want to achieve?
Mine is getting past 350rwhp. The shop that will do the swap said I should surpass that with the 5.4L swap with the bolt ons I also have as well.
Edit:
All in all heating I dont think will be a problem. your water pump should be able to handle it all.