2008 trailblazer replacing bad 5.3 with a good 4.2

Asked by steve11141114 Aug 03, 2023 at 04:03 AM about the 2008 Chevrolet Trailblazer

Question type: Maintenance & Repair

2008 trailblazer with a 5.3 locked up engine. neighbor has a free 2008 4.2
engine.  what modifications and extra work must be done to swap to the 4.2?

2 Answers
40,075

beatupchevy answered about a year ago

It's usually best to go with what the vehicle was designed for , How's the frame on that blazer ? Maybe it's time for something newer

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steve11141114 answered about a year ago

thanks for the information. Over the years I have swapped engines, always identical. Your information has confirmed what I have been thinking- stay with the same engine.

Mark helpful

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