Will a flywheel and clutch from a 1991 Ford F350 with a 7.3 L diesel fit a 7.5 L externally balanced gas engine in an F350 with a NP 435 4 speed manual?
Yeah, I guess this is not the correct forum, but if anyone can help i will be thankful.

 

I would check rockauto. Look up the parts for each, write down the part numbers and see if they are the same.

 

No there not atleast a 93 7.5 flywheel isn’t

 

Thanks for the response guys. I will Investigate further.

 

You need to get a proper 6 bolt flywheel and corresponding TC. for a PSD Diesel....I Think IDI Diesels have A 4 bolt TC.....
But I think you need to read More and smoke Better green

 

simple answer is no. diesel uses a dual mass flywheel, gas uses a solid flywheel .

 

I think the better response is that the motors don't have the same bolt up for transmissions even if its the same trans.

Factory they come with DMF's, but they can take a SMFlywheel.

I'd not cobble it together and get a proper flywheel for the truck.

Now, also from what I understand with a 460 is that you need to get an unballanced flywheel as well. Don't take my word for that one, i'm going from somebody elses info that I have not fact checked.

 

Tylan, thanks for your input.
In fact, despite my own belief that all 460ci / 7.5L engines where all internally balanced and so had neutral balanced flywheels, this in not true.
While preparing a 1980 460 taken out of an E350 w/auto transmission to replace the '72ish 460 Lincoln motor in my 1980 f350 I saw a balance weight attached to the harmonic damper, something an internally balanced engine dose not require (FYI: originally my truck had a 400ci as 460s were not used in F350s from 1980 thru 1983 according to my research).
So, after some research I discovered that about 1980 ford switched to externally balance in the 460 so this, of course, means I need a externally balanced flywheel.

This is why I started this thread: a local wreaking yards "corporate headquarters" told me they had the flywheel I needed, but when I went to pull it, it was on a diesel and the people there didn't know if it would work. Also I thought a fit might possible as neutral balanced flywheels on several older Ford engines are interchangeable for instance the '72 Lincoln motor is attached to a 390ci flywheel. So you never know, might work.

I am now convinced that it can't work as pointed out 4 bolt vs 6 pattern, dual mass vs single counterweight.
Thanks all for all the good info.