What would happen if I lowered my motor?

I have a 65 chevy short bed,it also has a lowered suspension.Its a custom truck:whacked:

i cut the front cross and re box to get the engine to fit .done this if nothing hits your ok check you drive shaft angle

Ya ,I am going to make new engine mounts ,might as well.:D I will also cut off existing rear end brackets ,and re adjust.I need to check oil pan,and trans. clearence.