What would this take? Would I have to buy an aftermarket crank? What would it take to neutral balance a stock crank?
Any idea of Cost to do so.
What are the advantages of external balance anyway?
Looking at a torquer motor for a truck that will be used as one.
I'm putting together a 80s d250 (officially let's call it an 83, even though the cab i have is 90, bed is 91, etc but the frame and everything I have here for title and vin is from the original 83 I had)
Looking at finding an nv4500 for it, want to make a good camper puller.
Couple of steps over OEM (what used to be called) "towing/ RV" cam.
4 barrel, probably a TQ. Will have AC.
S
Neutral balance stick flywheels seem easier to find, as do neutral balance harmonic balancers, that's all, as motivation to do so
Not really interested in stroker build at this point.

You are building, essentially, a stock motor.

Use the stock flywheel, not hard to find. For the balancer, Summit lists 11 offerings, again, not hard to find.

Benefits to neutral balance? In your application, none.

pretty sure the stock 5.9 is neutrally balanced.
I added an adapter flex plate to bolt it to my 318 torque converter on a 727 and didn't need to change anything. junkyard motor that ran when I got it.
so you should be good without doing anything else to it.

Are we talking internal vs external balance ?

Should be externally balanced and require the scalloped flex plate with neutral balanced torque converter.

Not stock it isn't.

Missed the part about it being a stick? I guess flywheel and NV4500 weren't clues?

You can buy, new, magnum balanced flywheels at rock auto for not a lot of money. But being this is an "AMC" build I hesitate to cite one.

ah, poster above straightens me out.
that is the flex plate I got and I have a neutral torque converter. thought it was the engine, didn't realize it was the flex plate.

No not an AMC build. It's a 2000 model year 5.9 360 cu in magnum engine being built for an 83 d250.

Yeah

30 years ago I neutral balanced my first 360 motor, which I still have, and am glad I did.