W series heads

w2 and w5 heads use the same
rockers
headers
w2 race heads were made with diferent
bolt pattern for headers it depend when they were made
previous w5 heads hade casting problem
the new w2 heads do not oil there rocker by there shaft
you need t&d rockers alote more expensive
I bought a set few years ago from a guy in the US
old style but were new and never install
hade them porte and complete with 2.08 valve and 1.60
they flow 298 cfm

dont fall are (iron heads) if they were in aluminium
I could put more cr. and still using the same gaz