Do any B-series late 90s Civic/del Sols have B18 motors stock? Pretty sure it's all B16A(x) for the VTEC and EX editions, respectively. Integras had the B18B, though. The Integra Type-R (JDM only) had the coveted B18A3 you're referring to, I believe.
That being said the last del Sol I had stolen had a B20A(x) block and B16A3 head, the LS-VTEC hybrid. I'm well aware of their reputation for being stolen and hot parts, so much so that my last one had an alarm and a removable steering wheel and I parked it under a street lamp in front of my house. That did not work.
EDIT: The 1997 Civic I had stolen here was a junked, twice totaled, complete piece of crap with a D16 (probably actually a D15) motor, SOHC no VTEC. They still stole it. It was recovered with projector headlamps and a straight pipe installed, with the cold air intake piping removed.
Yeah, I don't understand either. But thanks for the free upgrade.