How much are 360 heads (non magnum) worth

pishta said
the numbers on those heads cant be from 1970 so they have been replaced. teen heads on a 360 would make gobs of torque but would be all in at 4000 rpm. RV style. Not common but not unheard of. The 360 callout is misleading measure the valves or just measure the height of the intake port. the 318 is shorter rhan the 360 port and should be visible without pulling the head
1.05x2.07 is what a 318 intake gasket is stamped to. 1.16x2.28 is 340/360 intake port size.....post your results!

Sorry, I wasn't clear about things, by stock I meant, unmolested or unmodified, not necessarily that they were originals. This car started life as a slanty and a previous owner made the change to the current 360 and the current heads. When I mentioned stamping, I meant casting on the top of the head/runner, my apologies for the inaccurate language. Someone else is doing this rebuild and I've asked for some pictures of the underneath of the heads when they're removed, hopefully by tomorrow I'll have a few more images.

As for the condition, this car ran well with these heads, so I don't think there's anything wrong with them at all, I'm just going with a top end rebuild to a newer cam, lifters and heads.