Swapping engines

[BSnow]

I have a 1999 Chevy Silverado with a 4.8 l motor it's no good so I want to change it I was wondering what years can I use in a 1999 to where it'll just go right in and also can I use a 5.3 l motor and what would I have to do if I did what would I have to change

[Jsdirt]

Anything prior to 2007 will work, since the earlier engines had a 24x reluctor for the crank sensor. '07-up have a 58x reluctor.

 

Also, 2007 engines can have EITHER / OR a 58x or 24x reluctor - there was the "classic" GMT-800 truck sold right along side the "New Body Style" GMT-900 trucks.

 

To make everything go as smooth as possible, I would take the ENTIRE driveline (minus the front / rear diff & transfer case) - engine, transmission, and the engine computer, BCM, & harness, and swap ALL of it. If the donor engine is complete like this, it won't know the difference as to which vehicle it is in.

Edited January 5, 2024 by Jsdirt