usually if Libertys has worked on them they have a stamp on each ring. maybe the old stuff doesn't, cant remember for sure.



Last edited by 68 HEMI GTS; 02/05/13 04:32 PM.
68 Dart GTS "HEMI" 10.30 @ 131 pump gas street car 3780#
69 Roadrunner 511 six pack 10.92 drive to track street car