Some arrived with limited creation head P8R which experienced 33mm consumption valves (Ordinarily found on VTEC B-sequence) vs 31mm ingestion (non VTEC B collection), and the head experienced an 84mm shrouding vs 81mm for all other B collection heads. It is the B18C engine that remains the holy grail of https://beauosubw.thelateblog.com/31484638/the-b16b-diaries