03 5.3 liter swap into a 06 4.3

By Virgorio Davila
May 8, 2018 in Gen III & Gen IV V8 Engines (LS-Based)

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Virgorio Davila

Posted May 8, 2018

I found a 03 chevy silverado 5.3 that's being parted out ....what should I also salvage from the truck in order to do a complete swap into a 06 Silverado 4.3

Mike GMC

Posted May 11, 2018

Complete wiring harness, computer, and maybe the gas pedal assembly. Is an 03 cable throttle or throttle by wire? You may so want the motor mounts and exhaust Y pipe.

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