340 2 barrel manifold

1968-69 318s 2bbl were painted red that after age, grease, dirt & what not, can take on an orange'sh apperance...could this be what you saw?
View attachment 1715477112
there would certainly be other indicators even from a distance without reading block #s. ex manifolds, fan, that sorta thing.

Yes ^^^^^ see if it has the thinner Cast Iron water pump that exits on the driver's side, typical of the red 68 - 69 318s. By the way these are the 230 hp 9.2:1 compression 318s, so hang onto that one.

Yes, and the above pictured 318 has the cast iron water pump.