Any differences in regards to just the long block (throttle boddy to Oil pan). i.e. less horsepower due to different cams? I could get a good deal on one from an automatic 90 integra, to swap into my CRX but am not sure if I'll suffer any disadvantages in getting one from an automatic donor car. Any answer/advice, thanks in advance.

 

different intake manifolds, cams of course, i think that is about it.