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Northstar Engines and System Technical Discussion Discussion, Help need info. in Cadillac Engine Discussion; Help I am a real dummy when it comes to a North star 4.6 engine . I have the opportunity ...
  1. #1
    Hummer55 is offline Cadillac Owners Member
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    QuestionHelp need info.

    Help I am a real dummy when it comes to a North star 4.6 engine . I have the opportunity to purchase a 4.6 Nothstar Engine that I would use in a project sand rail . Where can I get information on what I should know about the vin# . Is there different performance 4.6 engines . What should I look for ? Any information would be helpful .




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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
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    Re: Help need info.

    DOHC V8 Vin 9 (LD8)

    * 300hp @ 6000 RPM
    * 295tq @ 4400 RPM
    * 3.66 inch bore, 3.31 inch stroke
    * 10.3:1 compression ratio
    * Aluminum block and heads

    Cadillac Northstar 4.6L DOHC V8 Vin Y (L37)

    * 275hp @ 5600 RPM
    * 300tq @ 4000 RPM
    * 3.66 inch bore, 3.31 inch stroke
    * 10.3:1 compression ratio
    * Aluminum block and heads

    http://www.babcox.com/editorial/us/us100232.htm

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