This is my first post so please be patient with me. I'm looking to swap a 90 integra b18 into my 94 civic ex coupe. Wondering how hard it is and if it is possible, which i believe it is. Another thing, if it is possible to change the head from the a to the GSR c1 or Type-R c5 head since i believe they are the exact same block. And if there is anything else i need to do the swap and any how toos will be great. The reason I want to do it is because my roomate picked up the car for $250, and I'm buying any of the swap parts for only $100, including engine, tranny, ecu, wiring and anything else. thanks for any info.