W series heads
w8 i believe were for nascar craftman truck series...
they will out flow w2 heads...they are aluminum...
http://www.shadydellspeedshop.com/moparheads.htm
click on w2...and then click on w8...you will see how much the w8 flows....
here is another link....
http://books.google.com/books?id=uz...snum=10&ved=0CF4Q6AEwCTgK#v=onepage&q&f=false
just google mopar w8 head.....
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