clutch size? best street clutch

I was trying to save money on my engine swap so I used an Exedy kit from Jegs. It came with a pressure plate, disc, throwout bearing, pilot bushing and alignment tool. It was just under $125. The kit says it is a Borg & Beck but mine showed up with a diaphragm which didn't bother me because I like diaphragms. The clutch has smooth engagement and no clutch chatter which a lot of inexpensive clutches can have. I also haven't been able to slip it yet, just the tires.

http://www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_763643_-1_10669

Chuck