Not sure if this exactly fits your situation but I found this on a website here
GM LS7 Clutch & Flywheel Package for ALL LSx Applications - Tick Performance, Inc.
"If you've lightly modified your LS1/LS2/LS3 or LS6 engine and you need a stronger clutch but don't want to give up factory-stock driveability, this GM LS7 Clutch is right up your alley! Using the same clutch disc and pressure plate that C6 Corvette Z06 is equipped with, this GM Performance clutch kit was engineered to deliver maximum reliability and durability, as well as long-term dependability. Ideal for street and mild strip use. This kit includes everything needed to install in any LS1/LS2/LS6 application: clutch disc, pressure plate, conversion flywheel, and GM flywheel and pressure plate bolts.
RAM 19.5LB Aluminum Flywheel upgrade includes ARP Flywheel & Pressure Plate bolts.
LS6 and LS2 powered CTS-V applications require the use of the Katech CTS-V Slave Cylinder Spacer, sold separately.
LS1 Camaro & Firebird, LS1 & LS6 Corvette, and LS1 & LS2 GTO all use the 14061685 pilot bearing. Every other application uses the 12557583 pilot bearing. 26SPLCAT fits all applications."