I had a shop put one into my '89 Prelude Si about 4 years ago.  Engine ran
great until I got rid of it about a year later in '05, but everything things
around it were starting to fall apart.

-Dave

google this group - various people here have tried them and are happy
with the results.  i've also examined them in junk yards where they've
been used in subsequently scrapped cars, and they are most definitely in
/much/ better condition than the high mileage stuff usually seen here.

I put a JDM B20A in my 1990 Prelude after the B21A1 in it started
burning 3 quarts of oil per week, and I'm MUCH happier with the JDM
B20A.  It only burns about half a quart every 3 weeks.  (I drive long
distances, and I drive aggressively)

Jon