Engine Build up
Also if an engine is going to blow up because of spraying NOS what parts actully give out? Is it the rings or actully melting the pistons or what?
For a big nitrous motor you want to look into higher end parts... Custom JE, Ross, or Diamond Nitrous pistons specifically forged for juice. Thicker ring lands are usually what is changed for the beating the piston top will take. Better rods are also essential. Lunati Pro Mod, Oliver billet steel, or Carillo rods are generally chosen at this point. And cranks as well need to be top of the line. Lunati cranks, Callies and a few other companies make some seriously strong billet steel cranks.. ANd once again ring packs should be top quality and file fit with more clearance.....
Usually if your motor is hurt using nitrous it's mostly burned pistons, broken ring lands, bent rods..... blown head gaskets happen occasionally (which you'd much rather have happen than lose a piston....)

