[Nasblu]

1966 L36 427-390 corvettes did not have a 6000 rpm redline only L79 cars had this tach in 1966.The 66 427-390 cars shared the 5500rpm redline tachs with the 327-300hp cars. It wasnt until 1967 that the L36 427-390 corvette motors shared the 6000rpm redline with the L79 327-350hp and L68 427-400hp motors. So according to the 6000 rpm tach in this car it would have been an L79 car. But it would have had a 60lb oil pressure gauge so I am assuming that the 80lb oil pressure gauge was added to this cluster at one time. Although not typical,80lb oil gauges have been found on 66 documented original L36 corvettes, but in most cases 60lb gauges were used.