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Old 09-12-2006, 10:31 AM
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Chevy 350 to 400 trans combo

I want to know is the combination of a '78 Chevy 350 engine mated to Chevy 400 transmission a good combination for drivability, gas mileage, etc.? It is going into a '50 Dodge Wayfarer.

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Old 09-12-2006, 11:07 AM
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It will work just fine. A BETTER combo would be a 700R4 behind your 350. If you are buying a trans this is what I would do even though it costs a bit more... Both mileage AND performance will be better, especially if you have some steep gears out back.
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Old 09-14-2006, 10:39 AM
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I made a couple of phone calls and...

The 700R is more readily available than the th350 or th400 trans would be for near the same $cost$. Just MAKE sure you get a good trans to Begin with. Always better to get one you know came out of a Donner so you can CK out the trans before you install it..Don't buy a pig in a poke so to speak??


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Old 09-14-2006, 11:34 AM
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Like said, the 700R is probably your best bet.

About the Turbo400, it takes more horsepower from your engine to spin one of these than a Turbo350 or a 700R.............thus worse mileage.
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Old 09-14-2006, 01:59 PM
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Quote:
Originally Posted by Rockey Meo
I want to know is the combination of a '78 Chevy 350 engine mated to Chevy 400 transmission a good combination for drivability, gas mileage, etc.? It is going into a '50 Dodge Wayfarer.

As a Moderator here , I would like to
WELCOME YOU here ...

A Turbo 400 does take a small amount more of horsepower to turn ... thus it is considered less fuel efficient. But it is way more durable. I suggest finding a 2004R or a 700R4 ... for the Overdrive feature.

Again ... WELCOME ...

Deuce ...
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Old 09-14-2006, 02:46 PM
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th400

the 400 is virtually bullitt proof but the 700r4 has overdrive with gas the way it is go for the 700r4
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