Internal balanced 460 uses a different harmonic balancer and flex plate than an external balanced 460. The crank is also different.

1983 was the first year that the 460 was available with a M/T & 4WD. ALL 1968/82 460's came with C6's.

 

 

I would say you are right on the flywheel, you need one that matches how the motor was balanced.
As for the pilot bushing you should be able to look at both to see if the crank ends are the same and will take the bushing.
As a guess I would say they are both the same and it will take the bushing......but it is a guess.
BTW I know of only 1 car manf. that used different cranks for stick or auto cars and that was back in the early 60's cars.
You can also ask over here as some of the members have done this swap http://www.garysgaragemahal.com/
Dave ----

 

 

Have you checked with the machine shop on the crank end if it will take a bushing or not? I would think they would know.
I would also think they would know if the flywheel will bolt up, I think it will.
If it will then you can see how much it will run to re-balance to work with the motor you have now as it may be cheaper than a new one that matches the balance you need.
ND/Bill only knows what was used in what years based on balance even if the they will bolt up to the other crank.
Dave ----

 

The 1973/79 Ford truck parts catalog is very specific when it comes to internal/external balance.

Ford changed the 460 midyear 1979, there are no before/from serial numbers or production dates.

The block casting number must be known to get the correct harmonic balancer and flex plate.

D1VE-6015-AB or A1B or A2B Internal Balance: 1971/73 429; 1971/78 460; Some 1979 F150/350 & E250/350.

D9TE-6015-AB External Balance (has a weighted crank spacer): Some 1979 F150/350 & E250/350; 1980/97 E250/350 & 1983/97 F250/350.

No 460's in F100's after 1976, Passenger Cars after 1978, F150's after 1979, 1980/82 F250/350. 460 reintroduced in 1983 F250/350.

 

Internal and external balance harmonic balancers are the same on 460s. The spacer behind the balancer is different, internal will be a simple round spacer, externally balanced will have a bobweight or "hatcher" hanging off it.

Yes you can have an external imbalance flywheel zero balanced to run on the internally balanced engine, most any machine shop should be able to do this for you. Call around and ask.

It has been a while for me but I suspect there are two ID sizes on 429/460 cranks for the pilot bushing. Measure yours and check part specs so you have parts ahead of time. I have an internally balanced 460 crank under my bench but no readily accessible externally balanced crank otherwise I'd compare these for you.

Check the head casting numbers on that Lincoln engine. If it was an early '73 it might have D2VE heads. These were one year only and are absolutely horrible for power and very detonation prone. If you have D2VE heads, do not run them under any circumstances. The 460 that came with the truck should have either D3VE or E6TE heads, which are effectively identical. I've ported both castings and couldn't discern any difference. If your Lincoln engine has D3VE heads, it's fine. You should really do some port work on the exhaust side while it's out but if they are in serviceable condition they're fine to run as cast.

 

 

 

429 CJ and SCJ from 1970 had 4sp manuals backing them up. the flywheels do fit '76 460 cranks.

 

1979 460:

D4VZ-6316-A .. Harmonic Balancer-Internal Balance & D0OZ-6359-A .. Crankshaft Damper Spacer - Use with block casting number D1VE-6015-AB or A1B or A2B

D9TZ-6316-A .. Harmonic Balancer-External Balance & D9TZ-6359-A .. Crankshaft Damper Spacer-Weighted - Use with block casting number D9TE-6015-AB

 

I have heard of people using 390 flywheels and having them drilled and tapped for the pressure plate. Starter selection may or may not be an issue, but I've heard of people doing this.

You can also get an internally balanced 460 flywheel and have it drilled and tapped for your pressure plate. There's no off the shelf options I'm aware of.
https://www.summitracing.com/parts/p...view/make/ford

Alternatively, piece it together with off the shelf parts like the flywheel below, find a pressure plate to fit that and a ZF5 clutch disc. Or try the same with a 390 flywheel, maybe you can find an off the shelf pressure plate and disc that will work.
https://www.summitracing.com/parts/m...view/make/ford

 

hayes 12-240 fits the FE series 352,390,427,428 and the 385 series 429, 460. so the crank mounting must be the same 2.5" register with 6 holes on all.
with other flywheels there are numerous options, tooth count of 176 & 184, clutch diameters of 11, 11.5 and 12. inches., long or diaphragm patterns.
some have a removeable 28 ounce weight to fit both internal and external balances.

I hit the Jegs site and looked up 69 Torino with 390, and 70 Mustang Boss 429 to get info.

the flywheel I have for my 460 came from a 70 Boss 429 that was a drag racer. no Ford trademark on it, must be aftermarket. 176 tooth, 15.5 overall tooth diameter, approx. 14-5/16" friction diameter, 2.5" register 6 holes about .9" thick, its been ground, 11.5" clutch, zero/internal balance.

I'm not yet certain how these will fit the ZF5

most of the flywheels are certified and expensive, $300 or more. Jegs did list a house branded one for about $80.

 

C5AZ-6375-K .. 352/360 Flywheel-Use with 11" clutch / 184T ring gear / (6) 5/16" -18 pressure plate attaching holes on a 12 3/8" bolt circle: 1965/76 F100/350 & 1965/71 Passenger Cars.

C5AZ-6375-L .. 390 Flywheel- Use with 11 1/2" clutch / 184T ring gear / (6) 5/16" -18 pressure plate attaching holes on a 12 7/8" bolt circle: 1968/76 F100/350 & 1965/71 Passenger Cars.