New 6.6 gas is RPO L8T

[redwngr]

'GM Authority' website is reporting that GM Powertrain has said the new HD 6.6 gas will be RPO Code L8T

 

GM 6.6 Liter V-8 L8T Engine
The L8T is a gasoline engine produced by General Motors for use in Heavy Duty pickup trucks. The engine displaces 6.6 liters in a V8 configuration and an OverHead Cam (OHV) layout otherwise referred to as push-rod.

It is part of GM’s fifth-generation Small Block engine family and made its debut in the all-new 2020 Chevrolet Silverado HD and 2020 GMC Sierra HD.

Overview
The 6.6L V8 L8T is built on a cast-iron Small Block, enabling it to have long-term durability. Thanks to aluminum heads and direct injection, the engine delivers more precise fuel control resulting in a higher compression ratio of 10.8:1. That enables a power output of 401 horsepower and 464 pound-feet of torque (in the 2020 Silverado HD and 2020 Sierra HD), with strong performance at low rpm, where it is needed when pulling away with a loaded cargo box or trailer.

The L8T also features a forged steel crankshaft, forged powder-metal connecting rods and additional high-strength components to provide the added strength and durability demanded by Heavy Duty truck customers.

The L8T replaces the 6.0L V8 L96 / LC8 engine and makes over 11 percent more horsepower and over 21 percent more torque.

Vehicle Applications
Manufacturer    Model Year    Make    Model    Transmission    Power (hp / kW) @ RPM    Torque (lb-ft / Nm) @ RPM
General Motors Company    2020    Chevrolet    Silverado HD    6-speed auto (6L90)    401 / 299 @ 5200 (SAE certified)    464 / 629 @ 4000 (SAE certified)
General Motors Company    2020    GMC    Sierra HD    6-speed auto (6L90)    401 / 299 @ 5200 (SAE certified)    464 / 629 @ 4000 (SAE certified)
Specifications
GM RPO Code:    L8T
Type:    6.6L V-8 gasoline
Bore & Stroke (in / mm):    4.06 x 3.86 / 103.25 x 98
Block Material:    Cast iron with nodular iron main caps
Cylinder Head Material:    Cast aluminum
Compression Ratio:    10.8:1
Valvetrain:    Overhead-valve, two valves per cylinder, variable valve timing
Fuel Delivery:    Direct fuel injection
Power (hp / kW @ rpm):    401 / 299 @ 5200 (SAE certified)
Torque (lb.-ft. / Nm @ rpm):    464 / 629 @ 4000 (SAE certified)
Predecessor:    6.0L V8 L96/LC8
Successor:    None currently

Read more: http://gmauthority.com/blog/gm/gm-engines/l8t/#ixzz5esWm11G5