All 8 cylinder cars, including s/c, have a front tappet cover A5-336 and rear tappet cover A90002, both with gasket A5-342.
Tappet cover special tapered bolt A5-287 secures the covers to the engine block; two per cover.
There is no gasket or washer on the bolts.
Tappet covers were painted on the engine.
All 6 cylinder cars have three smaller tappet covers.
Front tappet cover is A90452.
Center and rear are both A90451.
All three gaskets A90455 are the same.
There are three bolts A5-287, one per cover to secure them to the engine.
There is no gasket or washer on the bolts.