Will a '74 fuel tank work in a '71 without (too much) modification?

Thanks in advance,

D. Ocean

IIRC, they're all the same.

No they aren't but they will work. It is the subsystems that differ. Evaporative and such...

I know. But the actual tank itself is the same...

So I can take all the "stuff" (evaporative cannister, expansion tank, filler neck) off of my '71 tank and bolt on to the '74 tank?

It should work. Hammy is right too. The actual tank is pretty much exactly the same year to year. Although, I wonder about the 914-6 tanks. They would have either had no return or a blocked return. I would bet on the later...