Read this before you swap...

Ok, what is up with new hemi valve seats falling out of the heads???? My buddy has a 300C 5.7 hemi. Has about 65K on it and it dropped a valve seat about 2 months ago. Drove it, stopped for gas got back in and started it, motor made an awful noise and power was way down. Took it into the dealership and they mechanic knew what happened even before the story was over. And the kicker: The warranty doesn't cover it because it is an "unlubricated part". What the H? So $1600 later (and a 90 day warranty on the new head) he is back on the road with a car that he doesnt really trust anymore as the mechanic told him "it can happen at any time". So, he calls me a few minutes ago after driving about 20 miles..it happened again! He is hoping its the warranty head or else he is out another $1600 and will unload the car after its fixed. He loves the car, but hates the valve seats! Its all over the place on the internet, but the consumer reports says its a good car. look here http://dodgeforum.com/forum/3rd-gen-ram-tech/197085-hemi-valve-problem.html and other places...Why would they just fall out, could you do something to the new heads seats before you install them?

Since when is a 'valve seat' a separate part of the head? It sounds like a BS answer to me; one which I'd let some lawyer chew on. AFAIK the head IS a lubricated part and the seat is integral to the head assembly, even if it is pressed in. If its not being lubricated then its the fault of the manufacturer for not designing it to get lubrication. I smell a class action lawsuit coming real fast...you might hate lawyers but it's BS answers from car makers like this, trying to skirt their responsibility that keeps lawyers in business. That's a manufacturers defect; pure and simple, insufficient interference fit between the seat and head to retain the part under normal operating conditions or a failure of the metal to retain its shape. Chrysler has had a rash of this - it was happening a LOT on their 426 hemi heads sold in the not-too-distant past.