engine conversion:which flywheel

[wiking]

Hi guys!
I`m pulling out my stock V-6 engine, replacing it with a 302 from a 70`Stang, which means 28 oz flywheel. I have the 4-speed manual transmission, which seems to fit quite well to the 302 engine. Now, do I use the flywheel from the V-6, or do I use the one already mounted on the 302? Does it fit in the mII bellhouse with a 10" cluch? And can i use the starter from the V-6?
I am aware that some of you have done this swap, so I hope you can help me out on this one .

 

[Vince]

I'm pretty sure the V6 flywheel won't have the correct balance for the 302, so you will need to use the V8 flywheel. The problem is your V6 bellhousing may not fit around the V8 flywheel.

 

[THE COBRAMAN]

The v6 bell will not bolt up to the 302.

You will need either the flywheel from the donor 302 and it's corresponding bell, or the II-specific bell and flywheel.

Both of these options present problems. The earlier bell is going to have problems with tunnel clearance, and require additional fabrication to adapt to cable clutch activation, or the car is going to need to be converted to a hydraulic clutch system. I imagine with enough time and fabrication skills, mechanical linkage MIGHT be fabricated, but I doubt that it would be an easy road to take.

The II bell and flywheel are becoming relatively difficult to source, and that's here in North America, let alone Europe.

The V6 transmission input shaft is smaller in diameter where it inserts into the pilot bearing, and longer as well. Without the correct input, or a fabricated sleeve to compensate for the smaller diameter, clutch action is going to be compromised, along with excessive wear on the input shaft bearing, and possibly even the trans case itself.

 

[wiking]

hm, great, More expences.
But the V-6 transmission in a MII must be a RUG, right? (or is it a TC-4?) And if so, the parts from other ford cars, like the early Granadas, must be interchangable. So theoretically speaking, it shouldt be possible to use the tranny from one of those behind a 302. As i recall it, there is one of the Granadas with a 289 in it. Or am I mistaken?

 

[jydCOBRAII]

hm, great, More expences.
But the V-6 transmission in a MII must be a RUG, right? (or is it a TC-4?) And if so, the parts from other ford cars, like the early Granadas, must be interchangable. So theoretically speaking, it shouldt be possible to use the tranny from one of those behind a 302. As i recall it, there is one of the Granadas with a 289 in it. Or am I mistaken?

The v6 tranny if it is factory will be the RAD, the only design offered in the 4,6 and 8 cylinder Mustang II Like Cobraman said you can make any of the v-8 stuff from other Fords work but how much work do you want to do? The v-8 bell and trannys are getting harder to come by but they are out there.

 

[wiking]

OK. thank you so much for answer, guys. It will be close to impossible to find a original tranny over here in Euroupe, so i have to consider other options. But never the less, I WILL make it work, the MII of mine is going to have a 302, no matter the effort. Once again, thanks for your help!

 

[78CobraII]

Wiking,

Given your location, it might be easier to find a late-model Mustang ('84-'95) 5.0L bellhousing and T-5. The tricky part is you'll need a 28 ounce imbalance late-model flywheel. These can be bought in the US or a good machine shop could change the late-model 50 ounce imbalance flywheel for you.

As was said earlier, you could use the 1970 bellhousing, flywheel, and top loader (RUG?) transmission, but you'll need to increase the size of the transmission tunnel a bit to clear the 4-speed shifter. This sheetmetal work may be easier than finding rare mechanical parts in Sweden.

The late 1970's U.S. Granada and 1979/1980 Mustang had a 302 with a 3+overdrive transmission called the SROD which had a rail-type shifter. It should swap in place of a top loader.

It might be interesting to check bolt patterns, input shaft diameter and length, and spline counts on some major European transmissions. It might be that BMW. Mercedes, or Volvo have a big 5-speed that will bolt to a 302/5.0L bellhousing with machine work to the input shaft.

Let us know how the project goes.

 

[wiking]

The thing is that I was hoping to avoid things like longer sleeve on the pilot bearing, rebalancing flywheel and so on, becourse theese are things that I`m not too familiar with.(which pretty much define the point of asking you guys) However, cutting, welding and custom constructions is no problem, so the solution must be a customized tunnel and a transmission that is a straight bolt-in.

 

[Blue Thunder]

Devil's advocate..(or am I the devil himself? hmm) anyway, how about a nice C-4 automatic in the II? Autos are easier.

 

[Blue Thunder]

On a side note, I think it's cool that there's a II owner way over there in the land of the Vikings. Rockin'

 

[wiking]

No automatics for me! I know it might be easy, but I`m used to the old fashion manual gears. And i like it that way. Besides that, it`s not very common with automatic transmissins in Europe, and that means fewer, more expensive parts.

:OT: But you are right about the of MII in Scandinavia. Over here it is cool (and cold) to drive a II. One of the reasons for this coolnes is, that it actually is more common to see a shelby or a boss than a MII. This gives the II a high rating on the I-want-a-ride-in-that scale. Which makes it even more fun to drive The sad part is that it is virtually impssible to get faire-price spareparts. :OT:

 

[Blue Thunder]

I just realized the other day that I've seen two AC Cobras this month. I havent seen a II(other than the one sitting in my driveway) in at least 2 years. Sure, AC Cobra replicas are becoming popular, but who would have ever guessed that one of those cars would be more common on the street than the "lowly" Mustang II? Amazing.