the ls/vtec is a simple bolt on, the head has the springs needed. i have seen a dozen swap overs, its a bolt up really. 220 whp, i would venture farly to say the bolt up will produce about 150whp. 210 chp/ If you want whp upgrade the rods, use gapless top rings and add a 70 shot with a ported head, it should result in what you desire.