IAnybody know anything about this intake? The casting number leads me to believe it's from the '60's but I can't find it listed anywhere. Note the big water fitting up front. The ports are roughly 1 7/8" tall.

Looks to be possibly an industrial application. Odd bosses and no coil mount. What does the choke well look like? No doubt it is a 67 or newer LA application.

A search on the casting number comes up with a "water heated intake manifold". Not sure of the application, though.

it does have a coil mount.

never seen a pipe plug in that spot on a intake. if its in the cross over? or it could be an oil dump for an oil cooler if open to valley? definitely has a cast in boss for it.

water by pass fittings looks to be plumbed for Indust/boat engine with water cooled exhaust manifolds maybe.

looks to be an early non emissions 318 intake. it does have bosses for v style a/c comp. 273 had a single plane 2v intake so don't think it is 273. could be from larger Industrial truck app.

I agree 67 or newer

I wager a boat engine or larger truck chassis.

No choke well or EGR.

With no choke provision then the application must have been industrial of some sort, not expected to go through frequent warm up cycles?

1970 ~ 1978, interesting. Here's a pic of the different heads to go with it.