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| 1973 to 1985 Carburated Vehicles Emissions laden vehicles, but still simple enough to work on and we still love 'em! |
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#1
Tue, November 2nd, 2010, 03:20 AM
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460 c6 transmission
hi I am interested in swapping out my 351m with a 460 and am wondering will this effect my top speed and rpm ratio? and what's a good dif gear ratio to go with for highway driving? thanks
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#2
Tue, November 2nd, 2010, 01:03 PM
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My dad has a 79 Bronco that he's recently upgraded with a 429. It was originally a 400-equipped vehicle that he has tried EVERYTHING on to get better fuel mileage.
The gears he went with a few years ago were 3.0:1 out of an early 80's F-150 and it seems to work really well with that gearing. Just changing the engine won't change anything with the gearing and the 460 will likely give you a higher top speed (although anything faster than 80 in these short wheelbase trucks is spooky).
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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#3
Tue, November 2nd, 2010, 05:27 PM
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460 c6 transmission
I have a 351m and well I don't have an rpm gauge but I know in sitting aroun 3500 rpm at 100 km/h
and it annoys me to hell lol I was told 3:73 gears but still unsure thanks
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#4
Tue, November 2nd, 2010, 05:29 PM
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460 c6 transmission
I'm not overly worried bout fuel mileage. I just want it to take less effort to have a higher speed
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