Also the B17A block deck height is the same as a b16a. Basically a stroked version of the b16a. Not even close to the same deck height of a B18C or B16B .
Honda released OBD0 DOHC B16A first in the 89 CR-X siR and 89 INTEGRA xsi. NO SOHC vtec was prior to that. Till EG SOHC vtec in japan and North America.