AMC Bare 2.0 Casting  Type 4 Aircooled "Square" Port,  build the performance Head of your needs. It Comes bare with out Seats or Guides. Giving you the the ability to build any possible combo Stock or Street head you want. 

The 2.0L casting come With out a breather pipe, Slightly smaller combustion chamber over the 1.8L castings, and is with out smog holes.

Exhaust Port: Square