If you do the LS/VTEC swap you will need the conversion kit as well, your current motor doesn't have an oil feed line for your VTEC solenoid. But the GSR motor B18c1, or the B18c5 Type-r motor are your best bets. Like the other guy said the H22 is ALOT of moving stuff out of the way. The B18c1 is the most cost effective as they are generally about half of the cost of the B18c5. And since the GSR integra came with this motor if you need parts after the swap you can just tell tem its a GSR instead of the LS.