Should I? 04 Yukon 5.3L into '66

[Chance66C10]

I love driving my 1966 C10 and want to make it a daily driver. I have a 2004 Yukon with a 5.3L LS engine that just sits in my driveway collecting dust. I have owned it since 20k miles and don't really want to to deal with having to sell it.

I got approval from my wife to pull the engine, transmission, and front seats (3 person w/ folding consol). I have started researching what all it would take, and this site has been extremely useful.

My 66 currently has a rebuilt 307 with a SM465 and runs good. It's a little rough driving it in Houston traffic though.

Am I crazy for trying to tackle this?

What all can I reuse from the Yukon?

[lumpy63]

Its an awesome swap ,even better because you know the history of the donor.I did a 65 c10 swb a couple of years ago with a 5.3 turbo 400 a gear vendors over drive turned out really nice. Im confident that there is lots of input from other members out there . Go for it!

[Captainfab]

I would do it.

There is a LSx swap subsection to the 'Engine and Drivetrain' section of this forum. There is everything you need to know in there.

[TopFuel1966]

It's a no-brainer. Go for it!

[notsolo]

What they said! Plus use as much of the Tahoe as possible..I have not done it but would like to know the best way to blend the 2 together. Hope you have something else to drive for a while.

[mcmlxix]

do it.

[dug224]

If I can do it, anyone can. Just keep track of the wiring. I double labeled each wire in case I got lost, which I didn't. The fact that you have the entire running vehicle in the driveway is a huge advantage. I didn't and spent a good bit of time looking for the correct gas pedal (drive by wire), throttle body and TAC (cruise control module). Good luck..dug

[Atbyrne]

I would If I had it. I did it with a lot older donor that i knew the entire history of.

[Chance66C10]

Thanks for the encouragement guys!

This will be the first time I tackle something like this, so I have been a little hesitant. Although I think this would be an awesome project for my 15 yo son and I. My daughter may get a little frustrated as I would have to drive her car while the truck and Yukon are both out of commission.

[Clyde65]

I did it. Im very happy with mine!

But think of putting a 5 speed in and take the 4 speed out. I think that would make a big difference and be a little kinder to the wallet.

[verdell]

I'd do it. I have an '05 5.3 engine on a stand in my workshop right now. I'm in the process of getting parts together to do a swap. My brother just acquired a wrecked but drivable '04 Silverado w/ 5.3 w/64k miles on it and we'll be doing the same swap into his '70 shortbed Cheyenne later this month..

[Mathew21]

I have an '05 5.3 engine/4l60e in my 66' I love it. I put almost 300 miles on my truck today almost all highway driving and got 20.5mpg. I'm sure it would have been a little better if I would slow down a little bit.