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Engine Swap - Flywheel problem

Hello all -

New to this group. Anyway, I have a 84 F250 with a tired 460 motor (4 speed manual, 4x4). It has lost oil pressure, the heads tap like crazy, and I will be rebuilding the sucker. The original engine cast # is D9TE. 79 Truck Engine. I understand this is externally balanced by both the flywheel and the harmonic balancer spacer.

In the mean time I had a used 460 swapped in. The engine cast # is D4VE, a 74 lincoln engine I believe. This engine was internally balanced and was mated to a automatic transmission.

The problem is, the guys that did the swap needed a flywheel for a manual transmission, so they took the flywheel off of the original engine. Now this flywheel was weighted for the external balance of the original engine and causes a very noticeable vibration on the internally balanced 74.

Well, I need a zero balance flywheel for this engine and I don't want to machine the original flywheel, because I'll need it for the original engine after the rebuild!

Am I screwed here or can a put a zero balance flywheel on this engine from any 460? I don't think they made a zero balance manual transmission flywheel for the 74 lincoln motor. Are all 460 flywheels essentially the same? What should I try to get?

Thanks for any assistance! Chang

Reply to
Chimichanga
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You question may be best answered over in the

alt.hi-po.big-block-ford-mercury group

Lots of swapping going on there.

Reply to
lugnut

Chang, The 460 was externally balanced - all of them (so far as I know). The motor out of the 74 is probably a 429ci. These two engines share the same block and most other parts the major difference is that the 429 was internally balanced. Therefore, the solution to your problem is to find a flywheel from a 429 for your engine. Shouldn't be a major problem to locate one in a salvage yard. Ford used the 429 in most of the large passenger vehicles, such as the Lincoln and LTDs in the 70s

Dave D

Reply to
DaveD

Thanks lugnut. I cannot find alt.hi-po.big-block-ford-mercury. I did find a alt.hi-po.mopars (the only group in alt.hi-po). Its possible my news server does not carry that group.

Chang

Reply to
Chimichanga

Interesting. I was visiting the forums over at

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and was told that 460's 79 and newer were externally balanced, and ones older than 79 were internally balanced. Then I found some web sites that claimed all TE engines were externally balanced.

I'm positive the engines I have are both 460's (One is a TE, the other is a VE). I will try to find a zero balance flywheel from a 429 and see if it fits on the TE. If it does, then it will fit the VE I have, as the VE is now fitted with the flywheel from my TE.

This has been fun. Thanks for the info! Chang

Reply to
Chimichanga

Find a flywheel for a 390, or any FE, other than the 428, for an internally balanced unit. Do not get one for an FT...

SteveL

Reply to
pakeha

My 1st question is why the "temp" engine? Everytime I've had an engine rebuild done, it's taken less than a week start to finish. 2 pulls and 2 installs for a single rebuild? Seems like a lot of extra labor to be paying for..

Would have been cheaper to rent a piece of crap to drive for a week or two..

Reply to
The OTHER Kevin in San Diego

Because I've never done a rebuild before. I will be doing this one, and taking my time. I don't want to rush it, I want to learn it. And I need the truck for snow plowing this winter, so it needs to run. I certainly expect to take the entire winter, plus some of the spring time to complete this project.

Chang

Reply to
Chimichanga

Thanks, I'll see what I can find!

Chang

Reply to
Chimichanga

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