Transmissions - Keep C4 or other options?

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Keep C4 or other options?

Printed From: The Ford Torino Page
Category: Powertrain Specific Forum
Forum Name: Transmissions
Forum Description: For discussion relating to all Ford Transmissions
URL: https://forum.grantorinosport.org/forum_posts.asp?TID=20310
Printed Date: 18-April-2024 at 10:50PM
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com

Topic: Keep C4 or other options?

Posted By: r9b2
Subject: Keep C4 or other options?
Date 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.

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1973 Ford Torino Base 2D 351CJ Project
1973 Ford F100 429
1966 Ford Mustang I6
2013 Subaru Forester

Replies:

Posted By: Rockatansky
Date 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

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72 GT Ute