turbo 6 bangers post here
Turbo slant to a n/a v8 is apples to oranges, I seriously doubt that there is a forced induction slant that will run with a forced induction v8...just saying.....
Of course, you're 100-percent correct; it's all a matter of cubic inches and valve sizes, but there is this to consider: Most small blocks will collapse into a basket of broken pieces at 25 pounds of boost unless they are treated to "heroic" (read $$$$$$$) measures such as main bearing girdles, billet cranks and the like... whereas, the unusually-robust inherent infrastructure of a slant 6 is
SO strong (OEM) that it can survive 30+ pounds of boost without all the shoring up of the "mainframe."
As you are aware, it was originally intended to be an aluminum engine, and apparently benefits from those original design parameters, many of which weren't changed when MA went to cast iron construction. That makes it a "natural" for forced induction, in my opinion.
That surely doesn't make a slant 6 the equal of a turbocharged V8, but it puts it closer, in the real world, I think. I do believe it's a viable alternative to a normally-aspirated small block V8 in terms of output/dollar spent, (if not ultimate horsepower.) Maybe in terms of equipment (the "hairdryer", and necessary equipment to make it work correctly) it IS apples and oranges, but in terms of
dollars spent to go, say, 11.50, in an A body, it may be apples/apples.
Just sayin' II... :)