the b20 has more torque and hp due to it being 2.0L. the problem with a ls/vtec and a b20 is that they have no piston oil squirters as in the the vtec engines. also in the b20, there is very little clearance between valves and pistons sooooo. but if build correctly, a b20 can produce over 200hp and 150ft/lb which is great considering its prolly gonna go in a civic...