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Keep C4 or other options?

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r9b2 View Drop Down

Joined: 16-June-2021
Location: Maine
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    Posted: 02-August-2022 at 6:47AM
Hey all, the time is near to throw my rebuilt 351C 4V into my Torino.  Car came stock with a 250 I6 and a C4 automatic.  My research shows that it probably has a 157 tooth flexplate and that the V8s would have come with a 164, so I'm not sure if this is a simple bolt-together or not.  Is the C4 worth keeping and possibly modifying, or should I explore other options?  I'm not against a C6 or something like that, but my headers are allegedly for a C4 trans.
1973 Ford Torino Base 2D 351CJ Project
1973 Ford F100 429
1966 Ford Mustang I6
2017 Ford Expedition
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Rockatansky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 02-August-2022 at 1:37PM
157 tooth and a 351 leaves just barely not enough room for the stock starter.

you can use a smaller 'mini-starter' but that requires some wiring changes

also consider that your I6 C4 is not the same internally as a V8 C4, smaller clutch packs in the drums and probably fewer planet gears in the planetary gear sets
72 GT Ute
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