i currently have a 97 civic coupe with a b16 that has a simple turbo setup on it i also have a 94 GSR that i'm gonna swap the turbo setup on from the civic to the integra i was wondering if a b16 and gsr oil pan are interchangeable so i can use the b16 oil pan on the gsr engine

 

you cant use the b16 oil pan in the gsr engine.
wont fit

 

i beleive there the same bolt pattern but the oil pick up is diferent so im assuming that the pickup could be swapped also its not like honda to use tons off different parts but im not 100% sure on it

 

well the gsr has a gurdle that holds the bottome end togher it wont clear

 

I am glad you are not sure. Because they are not interchangeable.Just more bad advice as usual.