Some came with confined output head P8R which had 33mm intake valves (normally found on VTEC B-series) vs 31mm ingestion (non VTEC B series), and The top had an 84mm shrouding vs 81mm for all other B series heads. The B16B, found in the long-lasting Honda Civic Type R, takes https://b16-crate-engine80134.livebloggs.com/46497608/the-smart-trick-of-b16b-that-no-one-is-discussing