WHy

If you power goals are that high that you need to open the motor then use the proper stuff
IE rods , Scat was taken to 500+ whp even a lot more no problems , That include the OEM Pistons
now a days you can get Rod , pistons that are rated very very high for good prices , QED ,
http://www.intengineering.com/ etc etc
Again I replied to one of you other posts as well , only one way for getting high WHP and thats $ and doing it the correct way
Trust me , all the money spend on guys selling me S##T I could have build a 1000hp car by now LOL