760 rwhp 6.2L Swapped Twin Turbo Sleeper 4WD Silverado!

This has been a very special build for us.  If you’ve ever dreamed of going absolutely crazy on a build, and making something absurdly fast that was never designed to – check this one out!

Just imagine the look on that proud Z06 owners face when you demolish them from a light in an unassuming Silverado.

This truck started life as a 2017 Silverado 4WD 5.3L V8 single cab pickup.  Since, we had a customer looking for a 5.3L engine for his Hot Rod build, we used this as an opportunity to upgrade this truck to the 6.2L that was never offered in a single cab Silverado.  Once we took delivery of our brand new 6.2L – it was time to open it up and install a set of Diamond Pistons, Oliver Rods, an LT4 Crank, GPI Heads, and a custom cut GPI Turbo Cam.

Next, it was time to install the new power plant, and bolt up a Armageddon Twin Turbo System.  Due to the fueling limitations of the DI motors, we opted to also upgrade to the LT4 pump and injectors, as well as a direct port methanol system from ProMeth.

After wrapping it up – we strapped it to the dyno, and were pleased to see it made 760rwhp on the dyno, and is proving to be a formidable opponent to most high performance cars on the street.

Check out these videos to see more…

8 thoughts on “760 rwhp 6.2L Swapped Twin Turbo Sleeper 4WD Silverado!

  1. Adam says:

    Hi i would like to do a build like this. I havea 17 silverado 1500 crew cab with the 6.2. How many hours of labor did it take to do everything.?

  2. Chad Hildebrand says:

    What are you using for Fuel? The highest Octane I can get in my area is 91. Also, you mentioned the Cost was around $30k for this Build, does that mean you offer to do this for anyone for $30k? Thanks, chad

    • gwatneyperformance says:

      It could vary wildly based on configuration. A spec like this would be around $30k w/ the 6.2L swap. You could safely make a little less power w/ the 5.3L and save quite a bit.

      This being said – we don’t cut corners, so this is the cost of doing it right. Many will say it “could” be done for less – and we agree.

  3. Will says:

    I’m wanting to do the same 6.2 swap into my 5.3 2015 Silverado I have a complete 6.2 with the 8l90 but there’s no info out there on what is needed to swap. Did you guys have to reflash the ecm and the for it to even turn on and run in the truck? Would love to just take my truck to you guys but I’m in Houston, so any info you could share with me on this would be great.

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