[stonedchihuahua]

I have never heard anything bad about them but I'm wondering since these seem to be such a good deal.

[mstngjoe]

There were some of the early Roush heads that had a casting flaw in the exhaust port. Significant impact to the exhaust flow.
Probably due to a core shift during casting. It could be cleaned up with a Dremel though.

I would guess they have addressed it by now.

[Bumpstick]

Not sure on the "Roush" heads but if your asking about SBC type heads then the World products Sportsmans are really good and durable too... They may not have the huge intake runners of the newer heads but at 200cc and good chamber design they work good on most anything...