New GM oil pan gasket. This is the aluminum shim gasket with rubber o-ring seals. Fits all wet sump LS engines:
97-10 LS1/LS2/LS3/LS6 Corvette (pan to block)98-02 LS1 Camaro & Firebird04-06 LS1/LS2 GTO04-07 LS6/LS2 CTS-V99-10 LS based trucks