Mopar w2 heads

Brand new Mopar w2 heads. P4532693 open chamber heads. $1200 plus shipping and PayPal fees.
To me, they look like 48* heads with the pushrod clearance trench on the back side of the intake side of the mating point.

This is what I have found;

For use with 48 Degree lifter blocks. Features flat-machined rocker pads that require the use of T&D race rocker arms and long valves. Heads must be oiled through the tappets and hollow pushrods. Older style rocker stands and rocker systems do not work with these heads. 62cc chamber 2.02" Intake, 1.60" Exhaust 47cc Chamber Tall Stands - Dual pattern exhaust -open chamber Cast # P4532693

I do believe I read a few times these can be used on a 59* block but I do not personally know for a fact if this is true or something that can be done.

It’s still a kick *** head.