I've read the = Bentley on the procedure for removing the pistons, but I'm still a little unclear on = this procedure. What special tools will I need and where can I get = them? As best I can tell, all access is through the cooling pipe hole. I've got = the heads off my block, but I want to proceed with caution to prevent any extra damage. This is my first experience with a waterboxer. Any information/comments are greatly appreciated. Thanks for your = time.