500 Series Type 1 Head "Bare/Bare" Biral This is a new set

This is a new set of 87mm Type 1 Pistons for a 1641cc

Off Set: +25

419 Cam Lift

or Severe damage may occur

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

500 Series Type 1 Head "Bare/Bare" Biral This is a new setAA 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 &