D15B1 1.5 8V SOHC PGM-FI 1493 70hp@5500rpm 83tq@3000rpm 88-?? Civic

D15B2 1.5 16VSOHC PGM-FI 1493 92hp@6000rpm 89tq@4500rpm 88-91 Civic DX/LX

I found two stats for the D15B2, one is the HF and one is the DX, one being 62 and one being 92, the difference is, other than gearing, the DX head is a 16 valve. Is that the head you swapped a 16 valve?