Noob Question: Head Bolts wont budge (1996 Sportsman 400)

Okay, so I thought I was doing good in attempting to remove the top-end for repair, but I cant get the 4 top end bolts to budge. I’m guessing lock-tite was used, just cant seem to get them to budge. Any ideas or past experience that might assist me in getting these pesky bolts removed?