500 Series Type 1 Head "Bare/Bare" Biral 460/422L x 280/276D W/1

460/422L x 280/276D W/1

418 Cam Lift

or Severe damage may occur

419 Cam Lift

5mm Grant piston rings With a Chrome top Compression Rings

500 Series Type 1 Head "Bare/Bare" Biral 460/422L x 280/276D W/1AA 500 Series Bare Casting, It is set up to build the performance Head of your needs. It Comes bare with a 12mm plug hole, and with out Seats orGuides. Giving you the the ability to build any possiblecombo Street head you want. The 500 Series Castings come STD with: Cleanflowingcooling vanes, formaximumcooling through the head, and around the intake ports forincreasedHP and over all cooling. Amodernized Combustionchamber, for increased head flow &