I have a set of LT1 aluminum heads that are lightly ported. The valves and springs are not installed at the moment so you would need to have them put in or go with bigger valves at that time. 2 of the intake valves need to be cleaned up where they seat and I would would probably have the heads surfaced to clean them up as well. Taking offers so go ahead and ask.

Here are a couple of pictures. They came out pretty lousy though. But you can see the light blending that was done to smooth out the chambers a little and in the intake and exhaust ports.
http://cjcfo.fbody.com/members/jeffh...8/LT1head1.jpg
http://cjcfo.fbody.com/members/jeffh...8/LT1head2.jpg
http://cjcfo.fbody.com/members/jeffh...8/LT1head3.jpg
http://cjcfo.fbody.com/members/jeffh...8/LT1head4.jpg