one piece oil pan gasket

Will a one piece oil pan gasket for a 92' to 96' 318 fit a new 340 resto block? If so does anyone have a part number so I can order it? If it won't work what oil pan gasket should I use? I will be making some serious HP so I want to make sure I don't have any problems with oil leaks. Any help will be greatly appreciated. Thanks, Dartrunner.