ok i swapped a si motor in to my dx... but i tried to start it and it wouldnt start so i decided to try to pop start it, so i tried it made a noise then it wont turn nno more i thought the belt broke, so i slid the belt off the cam gear and tried to pull it out and it wont pull out or spin, but the crank still spins and so does the cam gear,, anyideas what it oculd be? ?????? please respond

 

Your problem might be electrical.
How sure are you that the wiring was done 100% right?
there are a couple of wires at the distributor that are easy to mix.
Two white wires, if the engine doesn't start, swap the two white wires at the distributor.