nsadhal, I also had a 1989 CRX that I put in a B18a into it. You can not compare this swap with the Datsun v8 swap. All of the wiring from the d16 motor just bolts onto the new b18a/b motor shorten the shifter and bolt it in. The Honda's are very easy swaps, The V8 swap can be done just remember that it will take you alot more time and $$ than the Honda's. If I was you I would go with the LT1 with the JTR mounts, this should take you about 3-8 months for your 1st time doing this kind of swap. Goodluck
Mike