Lance Johnson

Will a 1967 Eldorado 429 motor fit in a 1967 Cadillac deville

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The short answer Yes, same engine


Pre-1995 - DTC codes OBD1  >> http://z-cut.de/US/dtcobd1.html

1996 and newer - DTC codes OBD2 >> http://carprogrammer.com/Z28/PCM/OBD2/On-BoardDiagnosticTroubleCodes(OBD-II).mht

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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I agree, but consider the Eldorado was front wheel drive in 67.  The engine was still longitudinal in that application, alongside the tranny.  But I suppose the bracketry and how the engine mates to transmission would vary from Deville.  

I think you will want pieces from both to make it work. 


Bruce

2016 Cadillac ATS-V gray/black; 2013 Cadillac ATS 2L Turbo Premium (Wife's)

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I believe the oil pan on the eldo will be different being its a front wheel drive car.

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I would be stunned if there were any difference between the two engines.  Bruce and barczy01 have cast a doubt though, so now I need to rethink.

I had a 74 which is basically the same setup. As Bruce noted the transmission sat alongside the engine and it was driven by a stout chain.  

I still believe the engines will be identical and believe your tranny will bolt right up to it. 

My neighbor had a pristine 67 Eldorado and he had 2 429s and a tranny in his garage.  I think if there were a difference I should have heard about it.  

I need to visit the library later and will pull a few manuals and see what I can find.  I also have a friend in a scrap yard who has an excellent reference for compatibility, maybe he can shed some light.  I myself had 3 429s, what an amazing engine


Pre-1995 - DTC codes OBD1  >> http://z-cut.de/US/dtcobd1.html

1996 and newer - DTC codes OBD2 >> http://carprogrammer.com/Z28/PCM/OBD2/On-BoardDiagnosticTroubleCodes(OBD-II).mht

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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36 minutes ago, BodybyFisher said:

I would be stunned if there were any difference between the two engines.  Bruce and barczy01 have cast a doubt though, so now I need to rethink.

I had a 74 which is basically the same setup. As Bruce noted the transmission sat alongside the engine and it was driven by a stout chain.  

I still believe the engines will be identical and believe your tranny will bolt right up to it. 

 

I think your intuition in right on the engine but it will not be a direct powertrain (engine+transm) swap one will need part of this and that.


Bruce

2016 Cadillac ATS-V gray/black; 2013 Cadillac ATS 2L Turbo Premium (Wife's)

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1 hour ago, Bruce Nunnally said:

I think your intuition in right on the engine but it will not be a direct powertrain (engine+transm) swap one will need part of this and that.

Oh yes, the FWD tranny can NOT be used, I believe the tranny was a TH400, with a constant velocity drive shaft.  The flywheel/flexplate may need changing


Pre-1995 - DTC codes OBD1  >> http://z-cut.de/US/dtcobd1.html

1996 and newer - DTC codes OBD2 >> http://carprogrammer.com/Z28/PCM/OBD2/On-BoardDiagnosticTroubleCodes(OBD-II).mht

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Ok, I just checked with a good friend at Action Scrap yards, Scott, the 65 to 67 429 is the same engine regardless of whether it is a coupe, sedan or eldo.  

I hope that helps


Pre-1995 - DTC codes OBD1  >> http://z-cut.de/US/dtcobd1.html

1996 and newer - DTC codes OBD2 >> http://carprogrammer.com/Z28/PCM/OBD2/On-BoardDiagnosticTroubleCodes(OBD-II).mht

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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13 minutes ago, Lance Johnson said:

I really appreciate the help. Will my 1967 deville transmission work with the Eldorado motor? 

I believe yes it will it should bolt right up.  That is a Turbo Hydramatic 400 correct?


Pre-1995 - DTC codes OBD1  >> http://z-cut.de/US/dtcobd1.html

1996 and newer - DTC codes OBD2 >> http://carprogrammer.com/Z28/PCM/OBD2/On-BoardDiagnosticTroubleCodes(OBD-II).mht

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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28 minutes ago, Lance Johnson said:

Yes

OK good.  Ill do some more research at the library when I get there and post anything I can find. 

What carburetor is on that 429?, it will probably be a Rochester Quadrajet, the only carburetor I like better than the Carter AFB.  Both were a lot of fun to rebuild, miss those days.


Pre-1995 - DTC codes OBD1  >> http://z-cut.de/US/dtcobd1.html

1996 and newer - DTC codes OBD2 >> http://carprogrammer.com/Z28/PCM/OBD2/On-BoardDiagnosticTroubleCodes(OBD-II).mht

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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1 hour ago, Lance Johnson said:

I'm buying a brand new crate engine from a  seller.,(never been used) but he said it was for a 1967 Eldorado. l was hoping it would fit my 1967 deville, both are 429's.

That is very cool.  What a find.  Let me know how I can help, my parents, friends and I owned a ton of them.  I miss my 66 and 68 convertibles wow


Pre-1995 - DTC codes OBD1  >> http://z-cut.de/US/dtcobd1.html

1996 and newer - DTC codes OBD2 >> http://carprogrammer.com/Z28/PCM/OBD2/On-BoardDiagnosticTroubleCodes(OBD-II).mht

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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2 hours ago, Lance Johnson said:

Pick up the new 67 Eldorado 429 motor for my 67 deville, did you know it had a adapter ring on it?

The 67's used an adapter to fit the 429 to the 'new' transmission bell so removing the adapter would let you bolt the 472 to a 67 trans. 


Pre-1995 - DTC codes OBD1  >> http://z-cut.de/US/dtcobd1.html

1996 and newer - DTC codes OBD2 >> http://carprogrammer.com/Z28/PCM/OBD2/On-BoardDiagnosticTroubleCodes(OBD-II).mht

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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750 quadrajet... you can swap oil pan if its an issue.

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