Hey guys, I'm mid way thru my cam swap and I just started to do the springs on my 2000 6.0L and took my stem seal off. On ls1howto.com, it shows to take a pen magnet to take the stock seat off and that isn't happening. I popped one of my new dual spring seats on the stock seat and it fits nice but the outside edges aren't down all the way against the head. Are the stock ones supposed to come off? Or am I supposed to just put the new seat on top of the old? I tried to gently pull up on the old seat and it isn't coming. Let me know what you think ASAP. Thanks. Tim
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