These polished billet nose cone covers are standard equipment on all S&S polished Evolution style engines. Can also be used on stock and aftermarket Big Twin engines with alternator style crankcases. Available for 1973-1992, and 1993-1999 models. Covers come complete with gaskets, mounting hardware, and chrome plated billet ignition cover. The great looking ignition cover is also available separately and fits stock nose cones too.