5.3 motor

Asked by tylorallen Mar 13, 2019 at 02:42 AM about the 2003 Chevrolet Tahoe Z71 4WD

Question type: Car Customization

If i have a 2003 chevy tahoe z71 with the 5.3 can i put a 2004 silverado 5.3 in it
without getting the computer redone?

1 Answer
103,545

KenF answered 5 years ago

From 2000 to 2005 you should be able to swap without reprogramming, 2006 there were changes to pedal and modules. You should be okay between the years 2003 and 2004. You can read up on various changes made on these motors and programming requirements here: http://www.lt1swap.com/identify_vortec_engine.htm

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