Header seal is the seal between the convertible top front frame and the top of the  windscreen.. .. ie seals the two.  

Made with steel cores on end, and all clips. 55" Long.  One required per convertible.

This part fits:

1966 BUICK GRAN SPORT
1966 BUICK SKYLARK
1966 BUICK SPECIAL
1966 CHEVROLET CHEVELLE
1966 CHEVROLET MALIBU
1966 OLDSMOBILE 442
1966 OLDSMOBILE CUTLASS
1966 PONTIAC GTO
1966 PONTIAC LEMANS
1966 PONTIAC TEMPEST
1967 BUICK GRAN SPORT
1967 BUICK SKYLARK
1967 CHEVROLET MALIBU
1967 OLDSMOBILE 442
1967 OLDSMOBILE CUTLASS
1967 PONTIAC GTO
1967 PONTIAC LEMANS
1967 PONTIAC TEMPEST