I have the Roush 402R motor in my Superformance, I have only put around 900 miles on it myself. I have already dealt with a leaky
oil pan gasket that was replaced. As far as the warranty, Roush will not cover gaskets or seals and that you must have your
oil changed by a certified mechanic and have receipts for proof to keep the 2 year/ 24K mile warranty valid.
The issue I had was that I had a decent size puddle of
oil would show on my garage floor a few hours after I was driving the car. Took it to an ASE certified mechanic (Ford Dealer, to keep from voiding the warranty), they sorta pin pointed the leak being the oil pan gasket or the rear main seal. The leak was coming from the rear of the motor and drips would form on the transmission shroud. They (Ford Dealer) spoke with the warranty company, (a third party warranties the motors, not Roush directly), and the warranty states that gaskets and seals are not included in the warranty, only if a component needs to be replaced that would require removing the seal or gasket. So, they (Ford Dealer) were going to charge me $300+ to replace the oil pan gasket, of course this is labor, parts and other crap. You spend a lot of money on a motor, I guess my view on things are that I shouldn't have to do jack to this motor for at least a few years and I was pissed that I had a leak with such a new motor.
Sorry to drag on, but called Doug Reed, whom I bought the car from and he gave me a contact to talk to at Roush. So, voicing my situation, they said they would take care of the motor and the leak. Doug replaced the oil pan gasket, so far no engine oil leaks on the motor.
As far as the performance of the motor, I cannot complain.
And if was to do it again, I would probably go with Keith Craft, being that they are local here in the Dallas area, and I have heard nothing but good things.
Good Luck on your decision, I generally will get stuck with the lemons, it part of my life. So don't just listen to me, I'm sure Roush makes an excellent product and I'm probably one of the 1% of the people that have had a problem with their motor and a small problem at that. If this is the only issue I will have to deal with on this motor, then I will be happy camper.....
James
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