ORIGINAL: Mrfranchize02

FACT: The V-Spec is the Official "Internet Engine to Bash". I've had Novas, RB's and Sirio engines go bad prematurely and so has thousands of other people but it doesn't get posted.
My buddy has a brand new WS7III that Jim Hottinger calls a four minute motor because it mysteriously dies around the four minute mark. All engines are man-made and can have problems. I don't see whats the problem with swirl marks on the back plate because all my motors have had it. The engines are built to have the closest possible tolerance and this is part of the wearing-in process.