'69 Barracuda T56 swap, floor, cross member

340sFastback said

The one thing I have not seen yet is someone swapping a T56 into a Factory AC car. As you can see the heat ducts, covered in yellow tape, are only 1/4" or so from the floor. Heat ducts are steel and part of the larger housing not removable. If the tunnel has to be raised in that area I am going to be in trouble because there is no room there.

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I think you’ll be ok honestly. If you look at my pinch weld I didn’t take the relief cuts all that far past the pinch, meaning that the area at the pinch didn’t change much. The bigger effect is past the pinch weld, so, rather than angling down and away it stays more flat.

It’s hard to tell from one picture of course, but even if you think about the tunnel coming straight out from the pinch weld I think you’ll have clearance