it may depend on the year..:texas:
if the 350 heads have the 7th exhaust bolt holes?? :dontknow:
the manifold may be in the way of the dipstick.. :dontknow:
the exhaust pipe flange may be different.. :dontknow:
Yes. The dip stick my have to be bent to clear the manifold. The exhaust pips are different, The 305 has a two bolt flange and the 350 has a three bolt flange. The exhaust pip of the 305 manifold is longer the that of a 350 manifold.