well from 92-96.... there was the base engine which was the F22a was a 2.2 liter SOHC. next setup up was the H23 DOHC 2.3 liter. next step was H22 DOHC 2.2 liter VTEC.

I think 92 might not have had the H22.... and preludes were done being made in 01.

90-91 was the 3rd generation of the Prelude. 92-96 was the 4th gen (woot!) and 97-01 was the 5th and final generation.

The 97-01 only came in 2 flavors and they both had the same engine. H22 2.2liter DOHC VTEC... only diffrence was the suspension between the BASE model and the Type-SH.

There were slight improvements in the H22 from 97-01 but not much... 5hp maybe.