I don't believe that is correct anything I have ever read inlcluding literature from Honda says that the F22A1 is a SOHC engine and it was not offered in Preludes past 96 models. 97 is 5th generation and has no S in the U.S.

The JDM F22B is a DOHC engine and basically it's almost identical to the H23 engine but with an 85 mm bore instead of 87 mm.