How can I tell if its a an OBD0 b16 motor ?

 

cream colored engine harness connector look for cable transmission and valve cover DOHC is bigger Than VTEC

 

or just look at your engine block by the header ports and youll see the year your b16 is from.

Or look at your ecu to see what obd you are.

Another sign is the valve cover and if your intake manifold.

 

The only solid way is to check the date on the cylinder head,,and also there is a code on the block by the b16a stamp that will let you know if this engine came from an integra million series or civic/crx sir..

But as far as being wired for obd0 this poster above is right,the plugs on the motor will be a creamy white color..