i tried searching and i know that the 13b-rew is almost the same as a s5 t2 13b but my question is:

i have a s5 t2 jdm import motor set and also a 94 FD 13b-rew block all stock. would i gain anything by swapping all the motor externals to the FD block? or would it not be worth my time? i have both so its not a matter of buying or upgrading just wondering if it would be worthwhile

 

The TII and FD blocks are not even remotely the same.

The irons and intake ports are completely different. None of the S5 intake manifolds will bolt on.

FC vs FD