I am a little curious why they have been sitting for as long as they have.
They are 48 degree , looks like beryllium copper seats , definitely drilled for port injection........98.73459 % likely they came from a sprint car.
Maybe a road racer.
It looks like there was a coolant passage drilled between the exhaust valves of the center cylinders....I have seen this in book form only ( How to build Big Inch Small Block MoPars ) but it is a nice choice for any motor that will see a lot of heat I bet.
I'd pressure test them and if everything is cool , then you probably have a nice set of heads.
Did they come with valves ?

This is just flat wrong! Showing those pictures right before a weekend, when I'll have nothing to do but sit and think about'em.

It's the worse kind of pornography.

R.

They look like RP version to me?

Yes look like a rp which would be a 48* head. Also have a 13* valve angle.

Looks like a non raised port to me.


One way to check is all the Raised port W9's I've see take a -10 O-ring fitting for the water ports and the non raised were -8 O-ring

What you see is what I have, no valves. I have a set of 2.18 tit valves but the stem is smaller than 11/32. It's interesting about the RP vs non RP discussion, I don't know how to tell them apart. I do believe the water outlets are -10 size/threads, I'll verify next time I'm at the shop. Is there any other way to tell them apart?? How far is the port off the deck in each type head??

This pic is on Shady Dell's site



And this is what it says

"W9 RP (RAISED PORT) on left, "regular" W9 on right. W9 RP heads have .800" Raised intake ports. W9 RP hand port development, in house at Shady Dell will occur winter 2004/2005. Stay tuned...."

I checked today and the heads I have do have -8 size water ports.