Since you haven't responded whether you have headers or not, I will assume that you do, since I can see no other reason for your difficulty. I will also assume you are doing this on the ground. Block the rear tires. Raise front end with a floor jack preferably, install jack stands and release some pressure from the jack to seat the stands. Loosen the header flange and have a friend move the header while you remove the starter from below. Have a camera ? Pictures please.