Originally posted by TMoose02:
1. are the escape, 500 valve springs the same stiffeness as the st220. just confused b/c when i pulled it up on fordparts they are the same part number.

2. Also is it possible to replace valve springs without removing the cams? don't think so but might as well ask.


1. They are now. Don't know when the change occured.

As for being stiffer. They had higher spring pressure then my well loved 2.5L springs when measured.

2. Not in the the way you are thinking. The Ford tool uses the cam to remove the springs but you still have to remove the cam afterwards. This is also after you completey pull off the chains properly.

Matter of fact I would not even try removing the valve springs with the heads installed.

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.