Engine swap

210,000 MILES • 5.3L • 4WD • AUTOMATIC
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MILL550
  • MEMBER
  • 2 POSTS
I'm trying to upgrade my engine and transmission without modifications.
Mar 28, 2022 at 8:39 AM
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STEVE W.
  • ✓Experienced Mechanic
  • 15,367 POSTS
Not really much you can do other than a few minor changes to what you have, maybe a transmission shift kit, engine wise it's much harder.
Changing the engine to anything other than what you have will at minimum require a different powertrain control module and likely much more depending on the engine. The days of just swapping things around ended when all the computers and emissions controls became common.
Mar 29, 2022 at 2:03 AM
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