original 413 max wedge blocks are even rarer than hemi blocks...... I watched one on evil bay go for 3500 in the same shape as mine. Mine is virgin block, but the problem is it was left taken apart, exposed to the elements in a dirt floor barn i pulled it from. It's VERY rusty. It'd have to be sonic checked, sleeved, line honed, water and oil passages extruded honed, decked, lifter bores machined. and then since the sleeves would take the notches out, i'd have to have the sleeves notched. 1500 alone to do that.