Question about W2 heads.

Be careful with the ones being sold new now
so may different ones
=48 degree
=59 degree
=rocker stands only can use T&D and Jessel rockers (these heads have the lowest stands
=then the ones with the rocker stands a little higher so you can shaft mount your rockers like Norris, Mopar, HS...!
=closed and open chamber
= stock rocker stands
I am sure I am missing some.
Some of the above have the same part number but they are different, do your home work.
These heads make power!
I built a 340 pump gas 379 crank W2 with mirror work flow 287 Hopefully will be firing it up any day.