What size is my motor?
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Northstar Engines and System Technical Discussion Discussion, What size is my motor? in Cadillac Engine Technical Discussion; New member here, and new owner of a used 94 Cadi DeVille! There are a lot of forums here, so ...
  1. #1
    Balishdear is offline Cadillac Owners Member
    Automobile(s): 1994 DeVille
    Join Date
    Dec 2009
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    7

    Question What size is my motor?

    New member here, and new owner of a used 94 Cadi DeVille! There are a lot of forums here, so I tried to find the one that might make sense to post in. I have owned nothing but Camaros and just sold mine, and bought a used Cadillac. Looks like everything is all original with around 148,000 miles on it. My question is... I understand it is a 4.9 L, and from what I have read it should be a Northstar motor. I had a Camaro with a V8 305, what would this be, a V8 what? 305, 350? I looked everywhere and can't seem to find this out. I feel silly.

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  3. #2
    I~LUV~Caddys8792's Avatar
    I~LUV~Caddys8792 is offline Moderator
    Automobile(s): 1992 Town Car Cartier & 2014 Accord LX MTX
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    Re: What size is my motor?

    The '94 Deville had two possible engines. The 4.9L was the only engine offered with the base Sedan Deville, but if yours is the Deville Concours, then you get the 4.6L Northstar. The 4.9 is an 16 valve OHV engine....lots of low end torque, great reliability. The Northstar is a completely different engine, it's a 32 valve DOHC engine....not as much low end torque, but it's a screamer on the highway....downright FAST!

    Pop the hood, it'll be easy to tell then.

    4.9 looks like this:


    Northstar looks like this:


    The 4.9 is an even 300 cubic inches. The Northstar is 279.
    "They call Alabama the Crimson Tide, call me Deacon Blues."

    Current:
    1992 Lincoln Town Car Cartier Edition (5/14- ?)
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    Past:
    1995 Buick Roadmaster Limited (4/04-12/04)
    1992 Cadillac Sedan deVille (12/04-9/07)
    1999 Mercedes Benz S320 (8/07-7/09)
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    1991 Buick LeSabre Custom Sedan (9/12-6/13)
    2013 Honda Accord LX Sedan (6/13-1/14)

  4. #3
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
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    Woodstock Ill.
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    Re: What size is my motor?

    '94 Deville has the 4.9.

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