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Thread: Help idntifying northstar engine!!

  1. #1
    guywithlegs is offline Cadillac Owners Member
    Automobile(s): 4.6 northstar
    Join Date
    Mar 2010
    Posts
    1

    Help idntifying northstar engine!!

    i just picked up a northstar, but im having trouble finding out what year its from. any help?
    numbers on block:
    6RU605271
    3544850-1
    3522506

    Heads:
    22 93 8 B
    94 18 A 05

    On water crossover:
    3539786
    D1432


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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 67,500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    Location
    MD Eastern Shore, Kent Island
    Age
    77
    Posts
    56,845

    Re: Help idntifying northstar engine!!

    If the 6RU605271 is off the machined pad on the side of the block below the right cylinder head then that's a "VIN derivative" and a GM dealer can run it to find out the VIN of the original car itself.

  4. #3
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    48
    Posts
    2,755

    Re: Help idntifying northstar engine!!

    Build Date : 08/27/1993
    Eldo engine = LD8
    http://www.cadillacforums.com/forums...ain-parts.html


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