How do i remove the bottom spring seat?
Some years had a one piece spring seat/valve seal.
Originally Posted by LS1HowTo.com
Now, if your cam/spring package came with new seats, you're going to need to remove the valve stem oil seals. Using a pair of pliers, grab the oil seal as shown in the picture and wiggle/pull upwards and work the seal off.
If you have a 2001+ car, the oil seals and stock spring seat will be one piece and you just pulled both out. If you have a 2000 or earlier, the oil seal will be a small black or brown thimble shaped thing, and you can now remove the stock spring seat (using a pen magnet is easiest to pick it up).
If you have a 2001+ car, the oil seals and stock spring seat will be one piece and you just pulled both out. If you have a 2000 or earlier, the oil seal will be a small black or brown thimble shaped thing, and you can now remove the stock spring seat (using a pen magnet is easiest to pick it up).
Don't know what I was thinking. 
Originally Posted by vettenuts
Not sure I follow, the question in the thread title is valve seat, but you are asking if the valve guide is pressed in. Are you changing the guides?
