Here is pretty much any question you have answered.

B18A1
No Vtec
Found in: 1990-1993 Usdm Acura Integra "RS/LS/GS" (DA9, DB1)
Displacement: 1,834 cc (111.9 cu in)
Compression: 9.2:1
Bore: 81 mm (3.2 in)
Stroke: 89 mm (3.5 in)
Rod Length: 137.01 mm (5.394")
Rod/Stroke Ratio: 1.54
Redline: 6500 rpm
Rev Limiter: 7200
Programmed fuel injection
Power: 90-91 Only: 130 whp @ 6000 rpm & 121 tq @ 5000 rpm
Power: 92-93 Only: 140 whp @ 6300 rpm & 126 tq @ 5000 rpm
Transmission: 90-91: A1,S1, cable
Transmission: 92-93: YS1, cable

B18B1
No Vtec
Found in: 1994-2001 Acura Integra "RS/LS/GS/SE" (DC4/DB7)
Displacement: 1,834 cc (111.9 cu in)
Compression: 9.2:1
Bore: 81 mm (3.2 in)
Stroke: 89 mm (3.5 in)
Rod Length:5.394in
Rod/Stroke Ratio: 1.54
Power: 142 hp (106 kW) @ 6300 rpm & 127 ft·lbf (172 N·m) @ 5200 rpm
Redline: 6800 rpm
Transmission: Y80/S80

B18C1
Vtec (Dual Stage Intake Manifold)
Found in : 1994-2001 Acura Integra GS-R (DC2)
Power : 170 hp (127 kW) @ 7100 rpm & 128 ft·lbf (173 N·m) @ 6200 rpm
Redline : 9000 rpm (limiter @ 8500 rpm)
VTEC Switchover : 4400 rpm
Intake Manifold Switchover : 5750 rpm
Displacement : 1797 cc
Compression : 10:1
Bore : 81 mm
Stroke : 87.2 mm
Rod Length : 137.9 mm
Rod/Stroke : 1.58
Transmission: S80
VTEC Engagement: 5800 Rpm