69 gts 383 block

If you have the original exhaust manifolds, they will go for 750 plus. Big block oil pan, #893 I believe, is unique and worth a bit, at least a few hundred bucks. They make a repro oil pan now for them, so the price has probably dropped. The block is tapped on the front driver side for unique motor mount, but there are a fair share of big blocks that have the bosses to do this. Everything else is the same as other 383s, as far as I know. The engine is worth most to whoever owns the matching car. My two cents.