Is it possible to Swap a SOHC head for a DOHC head to make a 1990 Honda CRX HF D15B6 1.5L DOHC?? If anyone has tried please let me know. The suspense is killing me. I just need to know before I purchase a DOHC head to try. It seems like doing this would increase the HP and Torq output of my kina sluggish motor.