PSI GM 8.1L 8.8L Heads Intake trade 4 virgin 427 tall deck block - $750

I have a good set of PSI 8.8L (540CID) rectangle port heads and the matching intake. These are very good torque heads and they have a different port shape and size than the standard 8.1L head. Matching intake is included as well. Might trade for a virgin SBC (350 or 400) or a virgin 427 tall deck or LS parts/engines, outdoor gear, metal detectors etc etc