Chrysler 318 marine engine intake manifold has the casting between where
the thermostat goes and the right water intake to the manifold blocked.
This looks like it was made that way. Why? I am wanting to use this
manifold for automotive use. What can I do? It has a big hole in the top
of that about 1" pipe thread. Can I run a tee from there and 1 going to
water pump and other for heater?
L.D.