Hemi 6.4 has unitintended consequence across town at Government Motors:
GM Officially Rates 6.2-liter L86 Truck Engine at 420 Horsepower
September 10, 2013
The The new 6.2-liter V8 that will be offered in GM’s 2014 full-size truck line will be SAE rated at 420 horsepower at 5,600 rpm with peak torque of 460 lb-ft coming in at 4,100 rpm.
GM made the announcement today and said the engine, code named L86, is the most powerful of any light-duty pickup. The 6.2-liter V8 will be available in the Silverado LTZ and High Country trim levels as well as the GMC Sierra SLT and Denali models. When equipped with the optional Max Trailering Package, the trucks will boast a 12,000-pound tow capacity.
The L86 is part of the new Gen V small-block family of engines that debuted last year. EngineLabs
covered the introduction
and followed up with an in-depth analysis of the optimized combustion system
. Other Gen V engines in the new Silverado include a 4.3-liter LV3 V6 rated at 285 horsepower and 305 lb-ft peak torque, as well as a 5.3-liter L83 V8 certified at 355 horsepower and 383 lb-ft torque