360 Lambton

As far as water lines go, go to your heater core connections on the fire wall. Find out there size and get the proper size fitting for the intake manifold. That can be a smaller size than the feed line that comes off the water pump. The other heater hose comes off of the water pump. I noticed your thermostat housing. The older version seen below. It is much more commonly used. You may have to cut down that housing you have. The thermostat housing do not swap over from early to late intake manifolds.

There is a small hose that connects the intake manifold to the water pump. These are readily available. MoPar even has these new. You can get them at Manciniracing.com. But do beware there is a smaller version used on the older engines. Above is a 1 inch hose. The manifold fitting should be large in size. Thanks f you have the smaller one, you have to get the right hose or the right fitting.

E04DD28E-FD32-48CC-904E-E914689FD32E.jpeg F3B40035-9DF1-4E07-8307-362803793DD9.jpeg