502 Head Torque Specs

Does anyone know where I can find the Torque Specs for the Aluminum Heads on a 502? Thanks

Asimple Google search (502 chevy aluminum head torque spec) yielded:

http://torquespecs.tripod.com/hi_po_chev.htm

Asimple Google search (502 chevy aluminum head torque spec) yielded:

http://torquespecs.tripod.com/hi_po_chev.htm Well what about torque sequence? And don't they need retorqued after a heat cycle? If I have to look that up for myself........:)