Some came with constrained output head P8R which experienced 33mm ingestion valves (normally uncovered on VTEC B-series) vs 31mm ingestion (non VTEC B series), and The pinnacle had an 84mm shrouding vs 81mm for all other B series heads. The B16B is like a shorter stroke equal of the B18 https://jdmhondaengine03456.affiliatblogger.com/91997395/the-best-side-of-b16a2