340 vs. 360

I agree with 73dartsport340.
I also have a 73 340 dart, but I am currently running a 360. as far as rpms go,
I run my 360 to 7500+ rpms and haven't had a problem yet.In fact with my combo and compression I had to install a jacobs rev limiter because it wants to keep going. I am using eagle rods and custom venolia's now, but my previous 360 used KB hyperautectictictic.....you Know!.... pistons and stock rods that I lightened and polished myself. heads were 360j's that I ported in my garage , LD340 Intake ,hughes .514 cam . I spun that to 7000 racing and drove from idaho to minnesota for a musclecar race. (I ran an O.D. and 4.10's)As far as expense, I just picked up a running 360 and 727 for $200.