3.6 in A-body

I thought so too. Its a 60 degree v6. it should be more "narrow" than a 90 degree V8.

Nope, the 3.6L is WIDE. Its DOHC ,which allows it to flow more than the best CNC race head (299cfm at just .400" lift), also makes it a pita to swap. Valve cover the valve cover(max width), its as wide as a 440. Combine that with its unfortunate exhaust placement which just so happens to be EXACTLY at narrowest part of an A-body's engine bay, it was a challenge getting the exhaust out.

View attachment 1715678281
<<..wide as 440..>>
Holy moly!.. This is making me reconsider a 5.7 3rd Gen Hemi, as it seems so many aftermarket parts are available for the swap.