And here's my update from my 2011 post.
The
oil consumption got progressively worse. At 13,500 miles intake gasket let go. After replacement and new valve guides and seals,
oil was blowing out the breather and dipstick tube. Piston blowby. Leak down test showed two cylinders excessive. Tore down the engine. Two pistons had small cracks in the ring lands. Lifters worn, cylinders showed no crosshatch. Looked like the engine had 100,000 miles on it. Total rebuild and valve job needed to the tune of $15,000.
After the rebuild and a good dyno tune, runs stronger than it ever did.
Would I ever recommend or buy another Roush product? Nope. This is a total street engine and was maintained meticulously. My feeling is that it should have lasted a little longer. But that's just my opinion.