I have a JDM d15b engine in my 93 civic ex does anyone know if the head on that eninge is the same as the head on the d16z6. I beleive it is but I am not certain. I am changing the headgasket and timing belt out and already have a perfect d16 head and was just going to put that on but I was not sure if there would be any problems i could not forsee. Any thoughts would be greatly appreciated. Thanks!