Hello Fellow Mitsubishians, I have a 1995 Hyundai Elantra powered by a G4-DJ 1.5 SOHC 8 valve efi Hyundai/Mitsu engine. It's practically a sohc 1.5 8 valve 4G-15. My question is, Can I change my existing 8-valve cylinder head for a 16 valve DOHC head out of a 4G-15 DOHC 16 valve efi engine? Are the blocks the same on these two engine cousins? Without sacrificing driveability, what is the best go-fast things I can adapt/install on my Hyundai engine to make it run stronger? Thanks in advance.