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Old 08-16-2005, 11:00 AM
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new tranny for a 351C

Hey everyone,

Im restoring a 1970 mustang. I have a 351C I am going to rebuild, and I'm going to put some good money in it over a few years and do it right. Currently the car has what i believe is the original transmission for the car/engine.

If it we're up to you, what kind of manual transmission would you mate to the engine if it we're going to run between 400-500HP. I am looking for aftermarket manufacturers likely, with good strong tranny's.

Any suggestions on a good cam also? I really want to make this thing a little wild, rough idle is fine with me.

Any suggestions?

mike

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Old 08-16-2005, 06:11 PM
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Unless you are looking for an overdrive top gear, you'd have to go pretty far to beat the Ford Top Loader that was standard in them. They are stil considered to be extremely rugged with many new parts being made for them. The amount of power you are talking about wouldn't phase it.
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Old 08-16-2005, 07:16 PM
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Definitely a toploader

Hey,
If I were you, I would run a Toploader. It is a no-hassle bulletproof transmission, and with a Hurst Competition Plus shifter it shifts SWEET. If you want an overdrive, either a Tremec TKO or T-56 would work but is larger, bulkier, and something along the lines of $1500 for a bare transmission.

As a shameless punch, I have a small in/out Toploader date coded for a 65 289 Mustang. It is currently not assembled, however it was disassembled as the original case had a cracked mounting ear and a mint case was procured in its place. I have a full rebuild kit for it as well, and a new in box Ram 10.5 inch clutch. I had ended up going with a transbraked C6 in my Fairmont instead. I have pictures of the all the internals and they are in good/excellent shape. Lastly, I have the original Ford rebuild manual and the Toploader is a very simple trans to assemble. I just sold my Fairmont and got a '72 442, and don't need this Ford trans sitting around anymore. Email me at aclook@wisc.edu if you are interested, cost will be very reasonable.

Cheers,
Andy
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Old 08-16-2005, 07:31 PM
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Cam recommendation

As for a cam recommendation, lots of companies make good cams. If you want some serious lump, a very popular street/strip solid cam is the Crane F-246. It works very well with the 4V closed chamber heads on a '70 351C, and with a wide ratio toploader and some gear would have no problem pushing you stang into the low 12's/high 11's. You could easily hit 425+ hp with this cam.

If you want something milder, that will work with stock rockers, try a hydraulic cam with around .520 in lift and around 225-230 duration. Top it with a 750 cfm carb and get ready to rock!

The cleveland is an overlooked engine but it by far has the best heads of virtually any production engine. Good luck -

Cheers,
Andy
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Old 08-17-2005, 05:00 PM
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And now Edelbrock is making an aluminum "3V" head with 190cc
intake ports and a modern, closed, Yates style comb chamber.

And an RPM air gap intake to go along with it.
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Old 08-18-2005, 06:25 AM
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Quote:
Originally Posted by macx
And now Edelbrock is making an aluminum "3V" head with 190cc
intake ports and a modern, closed, Yates style comb chamber.

And an RPM air gap intake to go along with it.

Yah I was looking at it the other day, they are pretty pricey, but It looks like a pretty nice setup.

I figure ill probably just reuse, and perhaps rebuild my ford top loader 4speed, and put the extra cash that i would have spent on a tranny into the engine/rest of drive-train. I'd like to get a new drive-shaft, the old stock one is heavy and pitted with rust, balance is probably pretty shot. But for now, im still on body work.

mike
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Old 08-18-2005, 05:14 PM
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New heads are bust

IMHO, the new edelbrock heads are terrible for the money. They don't outperform a pair of 30-year old 4V closed chamber heads but cost $1600. Try a pair of CHI or AFD aluminum heads. They are a vastly superior product and are cheaper as well.

Andy
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Old 08-18-2005, 07:09 PM
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nice thanks for the info
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Old 08-18-2005, 07:57 PM
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Just out of curiosity

Are there performance figures out, or ??

And what are the CHI & AFD heads?

I like Clevelands and am interested esp.
in heads.

Thx
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