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Is a 5.3 to 6.0 engine swap possible?

Bruisr

New Member
Joined
Apr 22, 2018
Messages
3
07 Avalanche 5.3 with 117,000 miles(owned it 3 months). Last weekend I started to loose oil pressure and started to get a knock(it?s toast). In process of looking for a replacement engine..it?s down to Jasper or GM Goodwrench. What would I have to do to replace the 5.3 with a 6.0....probably not a plug and play?
 
Have you had it checked out?

Sounds like the AFM lifters bit the big one and will make noises but the bottom end may still be alright.

Then all you need is normal new lifters etc. and lose the AFM feature.

Check it out in problems engine section and problems 2007-2013 section for others who have had this issue.

If you think the engine is toast then a Jasper is a good choice as long as you have good mechanic to install.

Many threads in this section about installing 6.0l into 5.3 trucks.
 
Everything bolts together.  You can reuse your accessories, manifolds, etc.  May need computer tweaks for adjusting things like possibly larger injectors, part-throttle shift points, etc.
 
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