I had Mr Seven (SR7) build me a 4L60 tranny back when he was in Vegas for my Drag racer. I get it to the track and my first run the tranny compleatly fell apart and it was embarrassing to say the least. There went my summer racing. I called SR7 and Scott said it was my fault and wouldn't honor the warranty. I brought it down to his shop and the jerk said I had somebody else work on it so get out of his shop. I did no such thing. That was just a plain lie. I have heard nothing good about the guy or his trannies except from of course anyone at SR7.

I heard Mr Seven left Vegas in a real hurry because of so many disgruntled customers. Im amazed the guy is still selling trannies. I can't say this is true but one guy out at the Vegas speedway said SR7 just dumps gears and parts into his tranny cases and bolts them up and then paints them real nice. The guy was not happy at all and I just told him I had a bad experience with SR7 and just go somewhere else that has a good reputation like B&M, or Bowtie.
Dealing with SR7 was a really bad experience for me. The owner is a loud mouth jerk and does amateur work. I would highly recommend staying as far away as possible.
I bought a Bowtie after that and have had no problems with them or their trannies.
Luke J