Not possible without an enclosure, you need to connect the new drive some how to transfer your data.
If you are trying to clone your main drive while still running/booting from that drive you will not be able to do a block level clone. This means that your partition structure will not be copied over. The only way to do a block level clone is to boot from another/third hard drive or the restore disc and select disk utility.
If doing a file level clone then you must format and partition the new drive using apple disk utility. Choose the drive, select partition, choose 1 partition, choose guid partition type (not windows mbr type), and filesystem type hfs+ journaled.
Posted via RS Mobile