I made some calls about torque converters. What I learned is most companies have abandoned the "street high performance"
type of converter for 700R4 / 4L60E because stall speeds over 2500 rpm require a smaller diameter converter, which also
reduces the lockup clutch size. Too many complaints about the clutch slipping under full power. So most companies now only
offer the full race
(expen$ive) converter with billet front cover, anti-balloon plates, triple disc clutch, etc. For my needs, I don't
require all of that. My lockup function will only be used for better gas mileage when cruising down the highway.
Building a vehicle for that "in between" street zone is the hardest thing to do. Better than stock, but not all out race. Trying to
combine "stock" parts that will hold up to increased performance, but not full race parts that are overkill is the challenge.
Brian, Buckeye is now Precision of NH. They no longer offer a converter like you have in your Corvette - just full race with all
the bells and whistles. It looks like Phoenix has the converter I am looking for.
http://www.phoenixtrans.com/catalog/ptgm18245/
It has a 3200 rpm stall and has everything except billet front cover. It is a smaller diameter, but the lockup clutch is wider, giving it
more surface area than the even larger 298MM converter for increased holding power. I'm leaning towards it.