I have a 1990 Civic DX Hatch that I haven't driven in years because I was having bottom engine issues. However, I have been driving a 1995 Civic LX and would like to rebuild the top end but I can't have my car out of service for more than a day or two. My question is, does anyone know if the head off of a D15B2 is compatible with my D15B7 engine? It would be nice to take my other head off and rework it and then just swap it out.....