what is this off of?

[jackel440]

I dug out this 4barrel intake i have for a smallblock ,and was trying to find out what it came off of.sorry no pics ,but i have the casting number off of it.If you don't know is there a site on the net i could look it up?It's a spreadbore with egr that has been blocked off.
cast  12*19*78
casting number 4100340-3
I'm thinkn it probably a 360 intake ,but that just my guess.any takers?

[oldkimmer]

Or a 318.........kim..........

[RD]

my book doesnt go up that high, sorry 

360 and 318 have different sized intake ports, if you have another intake that you know what it came off of, you can measure to see if there is a difference.

[jackel440]

I will see if i have any othe intakes lay'n around and see if it matches up.I know i have some not sure were i buried them in the other barn