I need mechanical help
 

i bought an aftermarket radiator and in the process of installing it, now my car wont start... i have tried everything i can think of. what question do you have to help me try and fix it?!?!?

oh, and also on the new radiator... the metal part the hose fits over is bigger then then stock one and the hose doesnt fit right. is there a trick or something i can use without having to buy a new hose

Do not try to start the engine with no coolant in it.

After everything is put back together and filled up, if it still won't start, follow the usual "no start" troubleshooting. There's no reason for the radiator specifically to cause this. Did you spill coolant anywhere, such as on the distributor?

I completely agree with mk. Don't run the engine without coolant.

The "no start" drill is (1) to listen for whether the fuel pump primes for 2 seconds when the key is turned to ON(II) and (2) to check whether there is spark at the plugs (click Spark link in my signature).

coolant should have no relation with the car not starting does it crank no start, or nothing at all check all your fuse, check the fuel pump fuse if you're getting a crank no start.