would ls vtec be reliable if i did it right meaning getting the an ls vtec kit which comes with that **** that goes where the oil filter goes head gasket for ls vtec and some oil lines. i dont really know much about ls vtec, i searched i didnt really get much but dont you also have to change rod bearings.

 

yes as long as its done right, and u dont take it to 9k everyday you should be fine minus the oil leaks here and there (if it wasnt done right)

 

the oil circulation isnt the problem you can build reliable lsvtec

shotpeen your rods
use arp rod bolts and main stud kit
use an obd2 b series oil pump ie itr or gsr
use a gsr water pump from b18c and then the b18c timing belt

also set a sensible rev limit and dont rev it past where you make power