What are the advantages of going H2B rather than just swapping in the H series motor with the H series tranny also. Is it just a convenience factor of using B series mounts?

 

Is this in an integra?
If it already has a H22 or H23 in it, leave it.
If you have a b18 in it already then, leave it.

What are you thinking about?
The H series block will give you displacement which gives you more torque. It all depends what you want to do.

More information needed to help reply to your question.

 

h serious power/torque with b series gearing, gearing options, axle angle, solid shift linkeage, can use oem mounts with inserts, etc. etc. the list keeps going