DIY D16Y8 intake manifold onto D16Z6 write-up how-to LOTS OF PICS!!! - Honda-Tech

The pics are gone from the link but the step by step is their.

Any throttle body for an H series B series or D series are interchangeable, with one catch; you need to pay attention to where your IACV (idle air control valve).

Also make sure when you add the larger throttle body that you port match