If they have been repaired right then Its an ok deal I guess. I can't quite tell but looking at the springs if they have been sunk into the head about 1/2" then they are set up for stock valves. Mine I bought as a raw casting and I finished them. If you use longer than stock valves and coresponding valve spring depth pockets then that allows you to take/port at least .150" off the roof ( making the ports taller) which really picks up the flow.
The other reason I like these heads on a "B" block is that it allows you to use a 440 intake. Which will give you a little more volume and more intake choices. The ports have a ton of material in them so you can port them like you need. I raised my exhaust ports .150 as the gasket allowed .
The add says it include spacers, so I assume the valley tray is for a "RB" block . When you use these heads on a 440 then you need the spacers.
I'd ask what dia valve stems? I assume stock 3/8" = heavy as compared to 11/32 valve stems = lighter
See if he will send you a picture with a better view of the valve springs? Also what valve springs did he use? Might work for you intended useage? maybe not?
What was "repaired" did a valve seat need to be changed?
Hope that helps?
