Need help identifying

[Plymouth71]

I picked up this motor. I'm still learning how to decode. Can someone tell me what I have?

 

[Plymouth71]

Whoops missed one

 

[silversedan]

look at the numbers on the side of the block above the frost plugs.

 

[dryheat]

Intake casting indicates 4100340 1978-80 360-1978-82 318/4 Bbl Cast Iron.

 

[Plymouth71]

Intake casting indicates 4100340 1978-80 360-1978-82 318/4 Bbl Cast Iron.

Thank you. Any Idea how I would find a proper gasket for this? Looks like the previous owner used Permatex or something similar.