Well they arrived, and they are about what I expected, with a few pleasant surprises. Stock replacement style head, nothing super high performance here. Casting quality looks pretty nice, port texture is pretty similar to the two sets of vortecs I've had my hands on.
They come with a comp 981 spring, which should have 110lb seat pressure at 1.70" installed height. I will take them to the machine shop and get them to verify if they were installed properly. The heads did come with a positive viton valve seal. This is nice because the product info said umbrella seal. I was prepared to have them machined to take a positive type valve seal.
Valves are stock sizes, but have undercut stems with a swirl polish on them. Valve shrouding in the combustion chamber is absolutely awful! The intake is better than the exhaust, but not by much. There is definitely flow to be gained here, but only after I get the valve job inspected.
Stud bosses are blind, no coolant on the backside of tlthr threads. Studs were included. Water jackets are filled with metallic partials, so they definitely need a wash before bolting up. The painters tape on the deck has revealed a bunch of it everywhere there is a port.