Fits 1953-up Nailheads


Arias Components’ Timing Cover for the Buick 264-322-364-401-455 Nailhead is a tribute reproduction of the original WEIAND “Say WHY-AND” casting of the 1960s. This nostalgic finned cover clears most timing chain and gear drive setups. Cast-in boss allows mounting of cam-driven fuel or water pump – or can be blocked off. Includes oil seal.


  • Shot-peened matte finish (Polishing optional)
  • Fits both pre-1958 (requires upper dowel removal) and 1958-up blocks
  • Can be tapped for water inlets
  • Height: 2-5/32″ to pump face
  • CNC profiled perimeter for consistency
  • Includes oil lip seal
  • 356 heat-treated sand-cast aluminum, not die-cast
  • Manufactured in USA


  • TC05010-1, timing cover (1)
  • SA05010-1, seal (1)


  • Polishing (add 4-6 weeks)

Additional information

Weight6 lbs
Dimensions16 × 12 × 8 in
SKU: TC05010-1 Categories: ,