360 Magnum vs 340 mild street build - my experience
36 years of owning many small block Mopars. Yes, 340's were among the many LA's that included 273-360's.
My first hand experience of 340's vs 360 magnum is just this: 360 magnum hands down wins in the typical "add camkit and headers, " mild street build using the long block.
This is NOT a bash 340 thread. I love 340's. << Re-read that, I LOVE 340's. I'm also a realist. I'm not comparing the low cost of the 360 mag vs the collector value of the 340. I'm talk'n the performing of the two in the typical "Add your cam and headers" to the mild street guy out there. I'm very impressed with the 360 magnum, and I've built both in mild street builds.