W7 INFO

That's another issue for those heads. The heads are way too thin across the top of the ports and rocker stands.

When you start raising the port, the head is so thing in the spring pocket and the stands and the rockers are pulling up across the top of the ports and you start cracking guides from everything moving around.

There is a ton of issues with the W5. The W7 as far as I know addressed most of them. Why Chrysler didn't move forward with the heads I can't say.