These must be "full on" race pieces, because I see no provisions for oil filling or crankcase venting?? Or are all S2 valve covers made this way?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33627&item=2456524712
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33627&item=2456524712