340 = internally balanced
360 = externally balanced
What does this mean exactly? I want to hook a 360 up to my '65 cable shift auto 904 tranny. It has the small snout torque converter. Right now it's hooked to a later 318, so I have a machined spacer ring to take up the space between the small snout on the TC and the larger hole in the back of the crank.
Would I have to weld weights on my TC? I've heard of a 360 flex plate? Are all 360's balanced the same, so would any balanced flex plate do the trick?
