With GM promising it’s loyal red, white, and blue followers five world debuts at next weeks New York Auto Show the rumor mills have been running rampant. One Model that was indirectly confirmed to be in the big apple next week will be the 2014 Cadillac CTS.

While the Detroit carmaker is holding back on the pictures, it confirmed details on the engine lineup, which is highlighted by a brand-new 3.6-liter twin-turbocharged V6 gasoline unit paired to an 8-speed automatic transmission – both a first for the brand. The PR department has indicated that “The new powertrain is the highest-output V6 we’ve done in General Motors history,” said Richard Bartlett, assistant chief engineer for the engine. Which is a far cry from the 3.8-liter V6 found under the hood of my Dad’s old 88 Bonneville which could only manage a few ponies over 200, or the 245hp in his 98 supercharged model.

2014 Cadillac Twin Turbo 420hp LF3 Engine

The Brand-new 3.6-Liter unit will produce 420hp at 5750 rpm and 430 lb-ft of torque between 3500-4500 rpm. On this non-V CTS, Cadillac claims a 0-60 mph time of 4.6 seconds with a top speed of about 170 mph. A version of the engine will also be made available in the 2014 Cadillac XTS.

This LF3 engine will feature an all aluminum construction and will feature both direct injection and rather large intercooler. Official fuel-economy ratings from the Environmental Protection Agency haven’t been set, but Cadillac expects the new CTS engine will be rated at 17 mpg city and 25 mpg highway, running on required premium fuel. It will be available only in a rear-wheel-drive layout.

2014 Cadillac Twin Turbo 420hp LF3 Engine

The next-generation CTS will carry over the 3.6-liter V6 from the current car (likely as a base engine) and also add the 2.0-liter turbo four-cylinder from the ATS. The twin-turbo V6 is the most powerful of three engines announced for the redesigned CTS. We had to look up stats on those engines and discovered the following: The naturally aspirated directed injected 3.6-liter V6 is rated at 321 hp at 6,800 rpm and 275 lb-ft of torque at 4,800 rpm; and the Cadillac ATS’ turbocharged 2.0-liter four-cylinder is dialed up to 272 hp at 5,500 rpm and 295 lb-ft at 1,700 rpm.

2014 Cadillac CTS – Front 3/4 Spy Shot

We are expecting the turbocharged four and naturally aspirated V6 will be the only all-wheel-drive engines of choice due to the huge amount of that the twin turbos can produce in the newly introduced V6 engine. The rear-drive naturally aspirated V6 will also be mated to the new eight-speed transmission, while the all-wheel-drive variant and the turbocharged four-cylinder will be mated to a six-speed automatic transmission.

2014 Cadillac CTS – Rear 3/4 Spy Shot

In GM’s release there was no mention of the ATS-V, but if the 420-hp twin-turbo 3.6-liter V-6 can make the 2014 CTS accelerate from 0-60 mph in 4.6 seconds, it may do just fine under the hood of the ATS.

The 2014 CTS goes on sale this fall and the brand has clearly addressed the one area where they were not yet able to compete with their German rivals, which in the words of jeramy Clarkson is “POWER!!!!!” Tune back next week when the cars official images will be released to see if the aggression from under the hood will translate to the body-lines of the car.

All the numbers for the CTS’ Engine and Transmission Options