240 to 300 and C4
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Joined: Apr 2004
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From: Tucson, AZ
240 to 300 and C4
The engine in my 73 is starting to get tired it's got a 240 with a C4 transmission. The engine has over 200,000 and the tranny has over 100,000. I have a 300 to swap in but will the extra torque blow the tranny up in a few months?
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Joined: Sep 2002
Posts: 519
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From: Iowa
it might, just since your tranny is old, but keep in mind that C4's were used behind a number of healthier engines than 300's, and you can build a c4 strong enough to run a sub-10 second quarter mile, so if you're concerned, or if you blow it up, just rebuild it with stronger guts.
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trozei
Ford Inline Six, 200, 250, 4.9L / 300
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Sep 12, 2020 09:22 PM
