i have a k20a3 motor but i wanna swap the heads out and run the dual cam vtec head off the top line dc5. i have the base model dc5. Lmk what i need to do or if it possible do to the pistons and or crank, deck clearance to the head. i was planing on rebuilding the motor to stock specs or through rods and pistons in it. I was planning to swap the k20a3 into a eg or dc but whats the pros and cons of doing so? is it better to use the ek chassis?