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Update: Cadillac swapping two V6s for single 3.6-liter V6 in 2012 SRX

by Mark Kleis

Following a lower than anticipated take rate for its 2.8-liter turbo V6 for the SRX, Cadillac will now reportedly replace that engine with a 3.6-liter unit.

Leftlane reported just weeks ago that Cadillac would be dropping the premium engine offering on the SRX crossover, a 2.8-liter turbocharged V6, but at the time whether or not the engine would be replaced - and by what - were still unknown.

Now it appears that Cadillac intends to introduce an all-new motor, a 3.6-liter unit with a rather long and descriptive name, "LFX 3.6L SIDI, DOHC, VVT, E85 MAX, Alum GM," according to GM InsideNews. This new mill is based on the LF family on engines, and is expected to report for duty with power in the realm of 320 to 330 horsepower - at least in rear-wheel drive form.

It is expected that this new 3.6-liter unit will replace the 312 horsepower V6 currently found in the Camaro, which would mean power would have to at least be justifiably higher than that rating in that application. Once shoehorned into a front-wheel drive crossover, however, the engine may potentially see a slight decrease in output due to the inherent restriction often faced with such a drivetrain setup.

What is known is that the engine will utilize spark ignition direct injection, (SIDI), dual overhead cams (DOHC), variable valve timing (VVT), and be E85 fuel capable. This would make this naturally aspirated six-cylinder engine one of GM's most advanced, and will likely produce equally impressive fuel economy to match its expected power.

GMI also claims that the SRX will drop the arguably underpowered 3.0-liter V6 that currently propels the vast majority of SRX models sold, meaning the CUV will come with just one engine - the 3.6-liter V6. There is also speculation that this new engine will find itself under the hood of other Cadillac models, such as the CTS.

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