We can change out the pump to one off a 4.8L on a 4L60. Converter it over to a 6L80 and it is about a 500 RPM increase. We can also change them out to our famous 278MM 11", but that would be about a 1000 RPM increase.
Yes, we have our own inhouse CNC equipment and design and test them. We do outsource some parts from various suppliers. But our Multi is a custom Circle D piece. I have had numerous request from other converter shops for me to make a kit I would sell to them. Thought about it, but I can barley keep up now.
Here are a few pics of the CNC equipment.
Chris
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