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Thread: What size is my motor?

  1. #1
    Balishdear is offline Cadillac Owners Member
    Automobile(s): 1994 DeVille
    Join Date
    Dec 2009
    Posts
    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 Cadillac Owners 10000+ Posts
    Automobile(s): 1992 Town Car Cartier & 2014 Accord LX MTX
    Join Date
    Dec 2004
    Location
    Roseville, MN.
    Age
    30
    Posts
    34,087

    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.

  4. #3
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    69
    Posts
    82,278

    Re: What size is my motor?

    '94 Deville has the 4.9.


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