1963 Valiant

65 Cuda 340 said
You have a picture of how you modified the firewall? Just curious as to how you did it. Here's a pic from an early sixties Hot Rod Magazine article on swapping a 273 into a 63 Dart:

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I thought about putting a small block in my 63 Valiant convertible, but decided to stick with the slant six, mostly because I already have two small block A bodies and slant sixes do make nice, smooth drivers capable of cruising at any reasonable speed you might want to go.

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We sliced the firewall just below the wiper bolts and modified the wall and rewelded and refinished. Of course, at the time, we didn't know we had to do this so the engine bay had been painted. A couple of after pics included.