Cylinder Sleeve & Pistons?

[Carson]

I blew myself up:( But it's ok; I'm rebuilding my engine. I need some help finding a cylinder sleeve for a red top sr20. Then, what pistons are the strongest? what are the most horsepower beneficial? Which ones should I buy? Is there anything else I should need to replace after melting piston 2 and the cylinder wall?
Thanks a lot for your help