EcoTec3 Engines Overview

[CJ Hungus]

Snagged this from Tech. Comes from GMHighTech.

Sorry for the lack of information here, this is breaking from GM as I type. Hopefully we can keep updating this thread as more information is released.

Slated for the 2014 Silverado and Sierra line of trucks, GM has released specifications on three news engines from the "EcoTec3" family. A base 4.3-liter V-6 (dubbed the LV3), a 5.3-liter V-8 (the L83), and a 6.2-liter V-8 (L86) that looks awfully similar to the 2014 LT1 set to power the C7 Corvette.

6.2-liter L86 - AFM, VVT, DI

5.3-liter L83 - AFM, VVT, DI

4.3-liter LV3 - AFM, VVT, DI

Specs

LINK HERE

 

[66nova]

I want to see some power numbers.

 

[CJ Hungus]

I'd be guessing 25-30 more hp with better power throughout the powerband than the current engines.

 

[Alljackedup408]

POWA POWA POWA!

 

[mr_bots]

Interesting to see AFM (which only shuts off 2 cylinder) and VVT on the new V6. EcoTech3 is a dumb name, Vortec was better but who really cares if it's as sweet as they've been making it sound. Now we just need power and torque figures.

 

[mr_bots]

Here's a more detailed write-up too.

8 quarts of 0W20 for the V8. That's a lot of oil!
Mechanical vacuum pump to enhance braking

 

[CJ Hungus]

All aluminum this time around.

 

[Zembonez]

Odd offset water pump looks easily serviceable later on. What's the small pump on the bottom right?

 

[The_Chupacabra]

Odd offset water pump looks easily serviceable later on. What's the small pump on the bottom right?

I believe that one is the water pump and one is the AC compressor

 

[The_Chupacabra]

Wait are you talking about the item below the water pump? Did someone mention a mechanical oil pump? Does this truck have electronic power steering?