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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
They may not have a recall but they may be willing to help. Time to ask them for help. The worst thing they can say is "NO". They may surprise you.
Bill
A member of my club had it happen to him, with about the same year/mileage car as yours. GM paid half of new engine for him, even though he was "out" of warrantee. Good luck.
At least new guides, new machine work, and valve/springs for your application. That could be hollow, solid, inconel, dual, beehive, larger OD, etc. Along with the appropriate rockers/pushrods/etc for your setup.