B20B 2.0L DOHC non-VTEC 96-98 CR-V 126hp
B20Z 2.0L DOHC non-VTEC 99-01 CR-V 143hp
If you boost it, reinforse the block (sleeves would be ideal) as the b20 was a LS bored to a 2.0. Hence its cylinder walls might not like the idea of boost for very long....