You may perhaps observe that almost all Hondas which have a B16 engine swapped into them utilize a B16A, Though the B16B is the greater engine. This partly thanks to availability and pricing. Some came with confined output head P8R which had 33mm ingestion valves (Typically uncovered on VTEC B-collection) https://jdmhondaengine65925.creacionblog.com/28851628/the-best-side-of-b16b-type-r-engine-for-sale