Daggar in the site you supplied it says "1986-only flat top pistons were replaced by TRW forged pistons with valve reliefs."
Does this imply that '86s were not forged, or were they forged flat-top pistons? Not that it matters all that much becuase I won't be boosting or spraying my 120,000 mile engine, but id would be nice to tell ricers I have "forged internals" and they don't.