really, ya sure about that buddy?
You need to do some more research, who ever explained this to you either said it wrong or you just didn't interpret it correctly.
What you're talking about is a K20/k24 frankenstein motor. It's a k20 head mated to the K24 block. That combo may net you 20-30 hp and a bunch of extra torque. What you're talking about....I'm not sure if it's even feasible.