Hello,
I am wanting to put a 1977 460 with auto, into a 1988 f-250 with a blown up 460 with a 5 speed and keep the 5 speed
It's going to be a half butt pulling toy.
Which flywheel do I need to get, and what starter would i use. also thinking about up grading to a double disk clutch when I put this all together, depending on price. Can you guys give me some insite on how all this internal or externally balanced works and what parts I need for this.
I know i'm going to have a lot of other issues like wireing and fuel, but im going to keep my old carb and ditch all the fuel injection stuff, so might just start over with my own wiring. the hard part is getting the clutch and flywheel to work that i need help on.
Thanks
Shawn

 

you can use the flywheel and starter you have,as for a clutch LUK is good for what you need. now the counter weight on the 88 that looks like a hatchet head. that and flywheel will all bolt on the old motor. since you want to stay with carb you need to do something with your ele.fuel set up ,either lower fuel pressure or hook up a mech.pump yes use the older front cover .. as for the wiring most of it except the fuel stuff will still work

 

You can not put the '88 exturnal balanced flywheel on the inturnal balanced '77. You are going to have to buy a neutral balance flywheel, not cheep either because no one makes a cast one that I've ever came across. Try summit, that was the best deal I could find at the time. It was a Ford billit flywheel that would take any size clutch and was drilled for any psi plate. It cost $300. You could try to find a 360 or 390 flywheel but they will be for a 11 and 11 1/2 clutch but they will only be drilled for a long style clutch and in that size (11 or 11 1/2) the psi plate will probably hit in the bell housing depending on the bell housing you have. The best thing to do is just buy the $300 flywheel and then you can even reuse the clutch you already have.

 

shawn you go and get that new external ball. flywheel and will you let me know what the difference is between the new one and the old one.

 

Not to hijack the thread, but it is related.. I know it has been discussed numerous times in the past, but I cant seem to find a definite answer as to whether or not the pressure plate will clear the bellhousing on a 460 swap. If I were to use the bellhousing from a 351/400, what clutch and pressure plate will work without hitting?

 

I was looking at your thread and i was gonna post my input, but i waited. I dont know what flywheel your using..I've done tons of these swaps and the eaiest and best way is to find a 460 truck flywheel or get one from L&L. ya see up my way the fe motors and wheels are to find. so i collect all the 460 wheels i see for my swaps. just like this post I've done these swaps and i've switched parts and they worked.

 

You can not just switch the parts, that does NOT work.

it will destroy the engine and anyone claiming otherwise has never done it. you MUST use a neutral balanced flywheel with a internally balanced crank or a counter balanced flywheel with a externally balanced crank. Yes they will physically bolt up by they are NOT interchangeable period.

 

I agree with you monsterbaby, but after looking at some of the older threads, the bellhousing/pressure plate issue seems to be that you have to use a diaphram style clutch and not a long style. Someone said that the long style is thicker and will hit the bellhousing but you don't have that problem with the diaphram style. Anyone know for sure? Also, wouldn't the thickness of the flywheel be the same for all motors reguardless of internal/external balancing?

 

Here's your best answer I have from going through this last summer. The 360-390 flywheel will bolt on and will work but (any that I found) were drilled for a long style clutch and in 11 or 11 1/2. The long style takes up more room, thats where the trouble comes from. An 11 or 11 1/2 diaphagram psi plate would work because it takes up less room than the long style psi plate. So you would think just get it redrilled but I called 2 machine shops and both wanted $100 to drill it and by the time I'd have bought one and had it drilled, resurfaced and a new ring gear put on it, it wasn't worth it & in the end I'd have still had a 11 or 11 1/2 in clutch where I should be running the stock sized 12". I never came across a real 429 bell housing so I can't say if they are deeper. I ended up just buying the $300 billit flywheel and saved money by reusing the 12" clutch and psi plate that came from the donor truck.

 

Ok,
I guess what im thinking about is
1: taking the 88 flywheel and having it neutral balanced and using all stock parts from the 88. that would work and be the cheapest route.
2: buy the $300 flywheel from summit, (would it be SFI certified) and then running a heavy duty LUK clutch.
3: buy the flywheel and still search for a "slipper or slider" clutch and put it together the right way from the start.

I know for sure i was glad to roll under the truck and fing it had an external slave cylinder and not one made to the throw out bearing, (I hate those).

We are going to tear into it after Christmas and see what we got. Hopefully by the first of the year we will know what where going to do.

Thanks
For all the info.
Shawn

 

Even if you can find a shop willing to mill off the counterweight (liability issues there) I'd never feel safe with it.

 

460 not offered w/a M/T until 1983 (ditto 4WD). 1968/82 460: C6 only.

1979: There are two different 460 C6 flexplates and harmonic balancers.

Block casting number: D9TE-6059-AB, some 1979, 1980 and later. This engine uses a weighted spacer.

Block casting number D1VE-6059-AB, 1971/78, some 1979's, No weighted spacer.

460 engine changed mid-year 1979. This was a "running change" so there is no before/from certain serial numbers or production dates.

Truck parts catalog sez inre 1979: The block casting number must be known to get the correct parts.

 

What about using a 429 CJ flywheel?

 

It'll work, so all you have to do is...find one. Be prepared to spend mega-bucks.

 

Figures, it was just a thought. At least it would give him something to look for even aftermarket.