This is an exact copy of the cold air plenum as used on the original 1968 to 1969 L88 hood.  This was also used on the 1970 to 1972 LT1 hood.  We manufacture these with the best tooling resin and mat available.  This can also be used with the long hood from 73-82 with fitting and modifications that are straight forward. This is the best quality cold air plenum available.