What was GM thinking?

[Angrybird 12]

Originally Posted by SquawkVFR

Weren't the basic LS series motors around before the first FWD impala came out in 2000?

What does the LS have to do with the LLT?

[Angrybird 12]

Originally Posted by 1Coopgt

Actually I think I'm wrong. Doing a little looking and the first 3.6 LLT was in a Caddy CTS 2004. They were used in a couple of Front wheel drive cars also around 08 or 09.

I was thinking the engine design for the LLT was a derivative if previous V6 engines like the 3.5V6. Just because the LLT was first used in the CTS, the basic design could have been used before then and then evolved into the LLT. Like I said, I am probably wrong about that.

[JerTM]

Originally Posted by Angrybird 12

I was thinking the engine design for the LLT was a derivative if previous V6 engines like the 3.5V6. Just because the LLT was first used in the CTS, the basic design could have been used before then and then evolved into the LLT. Like I said, I am probably wrong about that.

I'm not aware of any similarities between the two. I believe the 3.6L is a ground-up design.

[spyderbuddy]

The LLT was also used in the 2009 Chevy Traverse, Buick EnClave & Saturn Outlook which are all front wheel drive vehicles.

[spyderbuddy]

Straight from GM High Feature engin
LLT[edit]
The 3.6 litre (3564 cc) LLT is a direct injected version based on the earlier LY7 engine. It was first unveiled in May 2006, and the DI version was claimed to have 15 percent greater power, 8 percent greater torque, and 3 percent better fuel economy than its port-injected counterpart. The LLT engine has a compression ratio of 11.3:1, and has been certified by the SAE to produce 302 horsepower (225 kW) at 6300 rpm and 272 lb·ft (369 N·m) of torque at 5200 rpm on regular unleaded (87 octane) gasoline. This engine debuted on the 2008 Cadillac STS and CTS.[8][9] GM used a LLT in all 2009 Lambda-derived crossover SUVs to allow class-leading fuel economy in light of the new Corporate Average Fuel Economy (CAFE) standards. In the Lambdas, LLT engine produces 288 horsepower (215 kW) and 270 lb·ft (366 N·m) of torque.[10][11][12]

Applications:

Year(s) Model Power Torque Dyno chart
2008–2011 Cadillac CTS 304 hp (227 kW) @ 6400 rpm 273 lb·ft (370 N·m) @ 5200 rpm
2008–2011 Cadillac STS 302 hp (225 kW) @ 6300 rpm 272 lb·ft (369 N·m) @ 5200 rpm
2009–2017 Buick Enclave 288 hp (215 kW) @ 6300 rpm 270 lb·ft (366 N·m) @ 3400 rpm 2016 link
2009–2017 Chevrolet Traverse single exhaust 281 hp (210 kW) @ 6300 rpm 266 lb·ft (361 N·m) @ 3400 rpm 2016 link (red)
2009–2017 Chevrolet Traverse dual exhaust 288 hp (215 kW) @ 6300 rpm 270 lb·ft (366 N·m) @ 3400 rpm 2016 link (blue)
2009–2016 GMC Acadia 288 hp (215 kW) 270 lb·ft (366 N·m) 2016 link
2009 Saturn Outlook single exhaust 281 hp (210 kW) @ 6300 rpm 266 lb·ft (361 N·m) @ 3400 rpm
2009 Saturn Outlook dual exhaust 288 hp (215 kW) @ 6300 rpm 270 lb·ft (366 N·m) @ 3400 rpm
2009–2011 Daewoo Veritas
2009–2011 Holden VE Commodore SV6 281 hp (210 kW) @ 6400 rpm 258 lb·ft (350 N·m) @ 2900 rpm
2009–2011 Holden WM Statesman/Caprice 281 hp (210 kW) @ 6400 rpm 258 lb·ft (350 N·m) @ 2900 rpm
2010–2011 Buick LaCrosse CXS 280 hp (210 kW) @ 6400 rpm 259 lb·ft (351 N·m) @ 5200 rpm
2010-2011 Chevrolet Camaro 312 hp (233 kW) @ 6400 rpm 278 lb·ft (377 N·m) @ 5200 rpm