Just came across my desk: one owner '78 Corvette pace car (verified by the "9" in vin) w/ 60k miles. Original owner who bought it 3 miles from his home. Orig. paint, panels, interior etc. Zero rust. Several original dealer docs. Always garaged and serviced up the ying yang-I've seen the service records. Trying to verify the engine (L48) as original before I pull the trigger. Can someone tell me whether there are casting #'s on the block similar to the Shelby's and if so, where the hell they are located. Or, point me in the right direction. Thx.