Lingenfelter L250110309 Lingenfelter C6 ZR1 Corvette Supercharger Front Cover 2009-13 v2.2 - Manual (Page 28)

Page
100. Using a 21 mm socket, tighten the four
engine cradle stud nuts (two on each side)
and torque to 110 Nm (81 lb-ft). You can now
remove the jack from under the engine.
98. Raise the vehicle back up in the air.
99. Using the jack raise the engine back up
into position.
27.
97. Reconnect the fuel line and safety clip on
the passenger side of the vehicle.