Some came with minimal output head P8R which had 33mm intake valves (normally found on VTEC B-series) vs 31mm intake (non VTEC B series), and The top experienced an 84mm shrouding vs 81mm for all other B series heads. Even crazier is that this engine continue to has significant tuning https://finnexqhy.bloggactivo.com/38893784/about-b16-engine-and-transmission-for-sale