Engine Swap
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 9 of 9
Northstar Engines and System Technical Discussion Discussion, Engine Swap in Cadillac Engine Technical Discussion; I'm looking at an '04 Northstar 4.0 complete with 3 miles on it. How difficult is it to make it ...
  1. #1
    jholland is offline Cadillac Owners Member
    Automobile(s): '97 Seville '76 Eldorado
    Join Date
    Apr 2005
    Posts
    67

    Engine Swap

    I'm looking at an '04 Northstar 4.0 complete with 3 miles on it. How difficult is it to make it work in '97 if you have all the electronics, intake manifold, etc front the '97?

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Cad tech's Avatar
    Cad tech is offline Cadillac Owners Fanatic
    Automobile(s): 03 STS, 97 STS, 58 Eldo
    Join Date
    Jan 2007
    Posts
    275

    Re: Engine Swap

    It will be a 4.6L in that 04 and it will not work in your 97, the reluctor wheel is different to start with. and if it is a 4.0L it is a olds aurora and if it is a 04 it did not exist......Need info on the car you are trying to put it in....sts, dts, sls, ect and rpo code or engine code....

  4. #3
    zonie77 is offline Cadillac Owners Connoisseur
    Automobile(s): 94 ETC,97 STS
    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    3,531

    Re: Engine Swap

    Someone posted that they had swapped a 2000 into a 199X more than a year ago. They got it to work but did not give details. They fabricated whatever was needed. It was not easy.

    If the number of teeth on the reluctor wheel is the same then it is possible but far from a bolt in.

  5. #4
    jholland is offline Cadillac Owners Member
    Automobile(s): '97 Seville '76 Eldorado
    Join Date
    Apr 2005
    Posts
    67
    Thread Starter

    Re: Engine Swap

    According to the seller it came out of a 04 Aurora that they put a 400HP engine in. There is a picture available and it is a V8. I thought they went to the V6 in the 01. My thought was to pick up a 97'ish Aurora with bad HG if I can pick this engine up at the right price. Not too many 03 or 04 needing an engine at this point. I'll ask for a serial number.

  6. #5
    Cad tech's Avatar
    Cad tech is offline Cadillac Owners Fanatic
    Automobile(s): 03 STS, 97 STS, 58 Eldo
    Join Date
    Jan 2007
    Posts
    275

    Re: Engine Swap

    Same as before it will not work 03 to 97 and I do believe there is know such thing as a 2004 aurora......03 was the last year for the aurora (verysad)
    on Auroras stick with this age range 1995-1999.2001-2003 for the engine swap...none exsisted in 2000......the block repairs same as the 4.6L I also own 2 Auroras and have done to many of these repairs......Very easy repair..

  7. #6
    jholland is offline Cadillac Owners Member
    Automobile(s): '97 Seville '76 Eldorado
    Join Date
    Apr 2005
    Posts
    67
    Thread Starter

    Re: Engine Swap

    I asked the seller for the serial number. It sounds like if its a 4.0 V8 it can't be any newer than a 99 and will work. I bought a 97 Aurora with 89000 for 1700.00 and fixed the and fixed the HG, what a car!

  8. #7
    Cad tech's Avatar
    Cad tech is offline Cadillac Owners Fanatic
    Automobile(s): 03 STS, 97 STS, 58 Eldo
    Join Date
    Jan 2007
    Posts
    275

    Re: Engine Swap

    Quote Originally Posted by zonie77 View Post
    If the number of teeth on the reluctor wheel is the same then it is possible but far from a bolt in.
    It is the spacing....dont try this at home 2000 up way diff from 1999 down and thats just mechanical not including controls....


    J.

    Get the VIN number if it is 99 and down then you have a winner

  9. #8
    jholland is offline Cadillac Owners Member
    Automobile(s): '97 Seville '76 Eldorado
    Join Date
    Apr 2005
    Posts
    67
    Thread Starter

    Re: Engine Swap

    The seller got this unmber off the engine. 12565435 Does this mean anything?

  10. #9
    Cad tech's Avatar
    Cad tech is offline Cadillac Owners Fanatic
    Automobile(s): 03 STS, 97 STS, 58 Eldo
    Join Date
    Jan 2007
    Posts
    275

    Re: Engine Swap

    you will have to call the dealer should be engine build part number, should be on a stamped tag attached to bank 1 side of engine right above lower crankcase.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting