B16B CTR

i just wanted to say hello to all. I just got a 87 CRX. This is my first CRX and i'm planning on giving it some boost! But thats gonna be a while down the road. any ways here are some pics of the car i got. I'm thinking of doing a B series but i was given a D series block today. i don't know how hard its gonna be to swap in a D. But from what i've been reading a B is gonna be a PITA.

does anyone know if it is a DX or .... thanks