These only have 30 minutes of breakin on them after being inspected, magged, new valves/guides/springs. Stainless valves 2.30/1.90, Isky springs for the 280 mega flat tappet cam. Heads milled to 116cc. Heads were ported and polished, I bought them bare already ported and the shop that I had inspect and assemble them said whoever did the porting did a really good job, and that they were probably setup for a blower engine. I swished to oval port aluminum, have a big cruiser now and don't want to spin high rpm's that these heads were built for. These heads have stock valve seats, no inserts.
1000 OBO. They come with a dual plane manifold that is port matched and painted white over chrome....needs some love to look good again.