http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEWAX:IT
The tops of 289 and 427's are the same and come up on e-bay from time to time like this one. If your windsheild has been installed correctly it should be a drop on deal. Some of the top attaching hardware is harder to find than the tops are but I make some of that stuff if you're in need.