974 casting heads with 68cc chambers 2.02/1.60 SS valves

Selling my 974 cast iron rebuilt heads to go aluminum. These have maybe 150-200 miles use on a crate 360. They have 68cc chambers and stainless steel 2.02 intake and 1.60 exhaust valves. The valve springs are Isky dual flat tappet springs good up to 575 lift. They have a 3 angle valve job. No port work done. Asking $550 plus shipping. Pm with email for pics.