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Discussion Starter #1
Hello,

My name is Joe and I bought a 78 coupe deville w/425 and a th400.
I bought the car about 6 months ago and have been daily driving it ever since. Any helpfull advise would be appreciated. 350 chevy swaps? weather strips and were to get them?

Thanks Joe
 

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2005 CTS-V, 1994 Infiniti Q45
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7,658 Posts
Welcome aboard.... thanks for signing up :wave:

Do you have any pictures.... How about mileage and condition......

Why dont you start a new thread in the CDV and SDV section about some concerns!
 

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Discussion Starter #3
The car has 150,000 miles on it. I rebuilt the 400 and put a b&m shift kit in it. I have rebuilt the front control arms. Just did the brakes all around, shocks, steering. I added a rear sway bar (junk yard parts).
I'm considering a 350 chevy with a 700R4. I will have few pictures soon.

Joe
 

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1995 ETC, 75 Deville, Cad500 powered 73 Apollo, 94 Mark VIII
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7,971 Posts
You have a 425 and a th400. If you're going to swap something, let it be a cad 500. It's almost the same block, and it will bolt right in. The th400 is a good transmission combo with the 500. There are quite a few performance parts for the 500.

Ah I see you have another thread on this, I guess I'll reply there too.
 

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1995 ETC, 75 Deville, Cad500 powered 73 Apollo, 94 Mark VIII
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7,971 Posts
Mine? Yep it's a 425. She's no speed demon. I'm either swapping a 500 in as I suggested to you, or I'm trading it to my grandma for my old 75 Deville with a 500 already in it. I'm looking into turbocharging whichever 500 I end up with, although the engine bay in the 78 doesn't provide much room at all.
 

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90 Posts
Welcome my good man. if you need any info on the older model caddy hearses & ambulances im your man. :)
im gone.
 
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