scrapecc

Ok so i don't have a clue what the hell kind of block i have. the part number on the back is 15298625 i think. i do know it has a 4.125 bore and a 4 inch stroke, have a little rash on the inside of one of the cylinders, so its time for a bore. i know the walls are a little thin so i am hoping to go as little as possible. i have afr 225s and a fast 90 90 combo. i am looking for a good piston choice, and a good solid roller cam. must be nasty. i am hoping for 575 rwhp in an 02 zo6. any input would be a help. thank you.