Some arrived with minimal output head P8R which experienced 33mm ingestion valves (normally discovered on VTEC B-series) vs 31mm intake (non VTEC B series), and The pinnacle experienced an 84mm shrouding vs 81mm for all other B series heads. Identification: (98 spec) PR3 stamp on engine head, leading radiator hose https://httpswwwnwjdmmotorscompro89012.jiliblog.com/96116488/the-single-best-strategy-to-use-for-b16-crate-engine