You need to do ALOT more reading. The very first post in this section teaches you how to basically do the install. Thatsaid the short answer to your question is yes the ls6 intake will fit on the LQ4 block and yes any FAST CAR intake manifold will fit on your car and under the hood. Most all parts are interchangeable in the LS world you just need to make sure you keep parts compatible between cathedral port heads and rectangle (research the two)
Bst way to do it if you ask me is find a good LQ4 long block, install the LS1 accessories (oil pan, fuel rails, injectors, wterpump, alternator yada yada and drop it in.