Some arrived with limited production head P8R which had 33mm consumption valves (Usually discovered on VTEC B-series) vs 31mm consumption (non VTEC B series), and the head had an 84mm shrouding vs 81mm for all other B series heads. The B16B, located in the long-lasting Honda Civic Type R, requires https://b16crateengine80134.techionblog.com/40031051/5-essential-elements-for-honda-b16b