360 or 340?

360 is better, 340 is better...blah, blah, blah. The 360 was considered a "performance" engine, but think about it; it was a DIFFERENT ERA. You're comparing apples to oranges. I prefer the extra stroke...because I LIKE stroke.

Speaking of stroke...Keep the 318 block, add a cast 4.00" crank (now let's get that debate started...hahahahaha!) SCAT I beam rods, and a dish piston. You'd have a bolt together "little" 390-ish small block! The monetary difference will be minimal.