[yountto]

From original 1966 427s ive owned in the past and have taken apart id say they were no drippers from start of production [august 1965] thru november 1965 or thereabouts ,mixed from november thru dec 65/jan 66..after jan 66 they were all drippers...this is based on having approximately 100 of these 1966 427 motors[Corvette and passenger] in the past[surely a few may have had been changed over time,and some had covers missing , but a fair amount had never been apart].....