340 Vs 360
had both...69 x head 340 10.5 compression (never bored) and now a 360/380 magnum crate and as drivebility in the city , gas price , 9.0 compression and tons of torque , no leaking valve cover gaskets ...can stand traffic all day long ... in 11 years in the mopar thing , my favorite is the 5.9 magnum , even drove it stock in a Durango r/t , in street maners it is amazing . Strong , reliable , cheap and its just the evolution of the others and Mamopar took the best of everything except high compression... oh and btw look up how the cam specs of a 5.9 magnum is ,you ll see that its B******* but still kicks the 340 x/j headed high comp"s *** ALL DAY LONG...
my 2 cents .