Alloy Valve covers for the Holden Grey motors that were fitted to 48-215 Holdens which are now refered to as the FX Holden.  The Grey motor was also fitted to the FJ Holden and FE to FC Holdens and the FB to EK holdens of the fifties and early sixties.

 These Holden rocker covers to suit the 138 grey motors are made right here in Australia by AussieSpeed.

Shown here below is the tappet cover and side plate fitted to the old holden grey motor. click on the picture to see a larger version