Conversions & Swaps LSX Engines in Non-LSX Vehicles
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77 c10 5.3l/4l60e swap

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Old 05-12-2010, 10:43 PM
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Default 77 c10 5.3l/4l60e swap

I am building this for a friend of mine and wanted to share the build. Truck originally had a tired old 350/350. It won't be a show truck as you can see, it is going to be a daily work horse. The engine my friend chose was a 2003 5.3L/4L60E out of a 2003 Tahoe 2WD. I will be using the stock harness and computer. I have stripped the harness of all emissions, a/c etc. I will also be using the stock under hood fuse block and keeping the drive by wire setup. Here are the pics..

The 77 C10

The engine and trans

The wiring removed.. lots of it!

Wiring harness cleaned up

The fuse block

Engine bay- Believe it or not it is clean. It was 100x worse, a little purple power and pressure washer got it cleaned up.

Engine going in..

Engine sittin pretty..


This is where I am at right now, I will tackle the rest tomorrow. I will keep updating as I get further..



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