Chevy Virtually Used The LT4 In The Tahoe RST Efficiency Version

When you’re an auto fanatic, you understand, acknowledge and perhaps idolize GM’s LT4 V8 engine. The high-powered V8 sees responsibility in among the most succesful and severe efficiency vehicles to return out of the Common: Chevy C7 Corvette Z06, Camaro ZL1, and the Cadillac CT5-V Blackwing and Escalade-V. Whereas the LT4 is utilized in simply these handful of vehicles, it was virtually utilized in one other, extra surprising software.

The LT4 virtually made it into Chevrolet’s Tahoe RST Efficiency Version. That’s no less than what sources near the matter advised GM Authority. When you’re unfamiliar, the Tahoe RST Efficiency Version is a barely hotter model of the Tahoe RST. And once I say barely, I imply it. Slightly engine calibration to the 6.2-liter V8 ends in 13 extra horses and seven lb-ft of torque for a complete of 433 horsepower and 467 lb-ft of torque. Nothing to sneeze at for certain. It’s sufficient to get this enormous SUV to 60 mph in simply 5.7 seconds which is spectacular for one thing weighing virtually 6,000 kilos. And extra energy would’ve been enthusiastically welcomed, particularly if it was in the type of the LT4. So, why wasn’t it used?

GM Authority was gentle on the small print of why, quite partaking in hypothesis as a substitute. However, I made a decision to ask somebody at Chevy myself. The Blue Bowtie defined a Tahoe with an LT4 would’ve price an excessive amount of — that it was cheaper to go the route of merely calibrating the present 6.2L for a bit extra horsepower than dropping into the Tahoe GM’s excessive efficiency, hand-built V8 (emphasis mine):

Chevrolet purposefully opted for the 6.2L engine with efficiency calibrations and induction system for the RST Efficiency Version. This implementation provides clients a stable efficiency increase, whereas nonetheless with the ability to supply the efficiency version at an inexpensive worth level.

So there it’s. We aren’t getting a cut price Escalade-V. Whereas it sucks that they didn’t do it, its comprehensible given the sort of cash one thing like that might have commanded. At the very least they even thought-about it.