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Discussion Starter #1 (Edited)

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I thought there had been the occasional rumors about F-150 mules with 4-bangers...so, if this works for GM, I imagine a similar response wouldn't take much time/effort.
 

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I thought there had been the occasional rumors about F-150 mules with 4-bangers...so, if this works for GM, I imagine a similar response wouldn't take much time/effort.
I would think that would be a great combination for the hybrid trucks. I can't wait to see what kind of mileage Chevy gets with the turbo 4......I'd be surprised if it's any more than the 2.7 Ecoboost.
This is a loose comparison, but my wife's Escape with the 2.0 AWD is only rated 2 mpg better combined than an F-150 4WD with the 2.7. We'll see I guess.
 

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At first glance I couldn't help but think WTF? But from a power standpoint this 2.7I4 sits right between Ford's 2.3EB and 2.7EB. This could be an awesome engine for those who aren't carrying/towing heavy loads and it would also be an exceptional addition to their mid-size trucks! They only lose about 15HP and 30ftlbs while also eliminating an entire cylinder head, two cams, 8 valves and everything else involved in creating Ford's 2.7EB V6. It'll be interesting to see if Ford follows GM's lead here.
 

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At first glance I couldn't help but think WTF? But from a power standpoint this 2.7I4 sits right between Ford's 2.3EB and 2.7EB. This could be an awesome engine for those who aren't carrying/towing heavy loads and it would also be an exceptional addition to their mid-size trucks! They only lose about 15HP and 30ftlbs while also eliminating an entire cylinder head, two cams, 8 valves and everything else involved in creating Ford's 2.7EB V6. It'll be interesting to see if Ford follows GM's lead here.
Actually 40 HP and 52 lb-ft torque more with the 350hp and 400 lb-ft in the 2.7 ecoboost (2018 model with 10-speed)... Coupled with the lightweight aluminum body, the Ford should easily outperform the i4 Chevy in performance and still be nearly identical in fuel economy. But yes, the ford engine is more complex and expensive, as usual.
 

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Actually 40 HP and 52 lb-ft torque more with the 350hp and 400 lb-ft in the 2.7 ecoboost (2018 model with 10-speed)... Coupled with the lightweight aluminum body, the Ford should easily outperform the i4 Chevy in performance and still be nearly identical in fuel economy. But yes, the ford engine is more complex and expensive, as usual.
I wasn't aware they had raised the power numbers for 2018. I'm not trying to suggest one engine is superior to the other when in fact they both appear to be positioned differently in their lineups. The GM 2.7 seems to be positioned as a replacement for the base NA-V6 while the Ford 2.7 sits in the same position as GM's 5.3. Both are impressive engines in their own ways!
 

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There were rumors of a 4-cylinder turbo option, but I wasn't expecting one 2.7 liters large. It'll be interesting to see how it feels in terms of refinement. It'll be even more interesting to see if it makes its way to the Colorado and Canyon where it could be more of a threat to the Blue Oval competition.
 

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Confirmed:
2019 Chevrolet Silverado Gets Optional Turbocharged Four-Cylinder Engine
A four-cylinder full-size pickup is coming, and we took it for a quick spin.

Car&Driver
- Greg Fink - MAY 18, 2018


Chevrolet will add a turbocharged four-cylinder engine to the 2019 Silverado pickup truck. The engine, built in Spring Hill, Tennessee, will be available in midline LT and RST trims and serves as the entry-level powertrain in those models. Today’s 4.3-liter V-6 will live on in lower-level Work Truck, Custom, and Custom Trail Boss trims.

Displacing 2.7 liters, the long-stroke forced-induction inline-four is an all-new unit that General Motors said was designed specifically for truck applications. It packs a solid punch with 310 horsepower and 348 lb-ft of torque—just 35 lb-ft shy of the optional 5.3-liter V-8—that is available from as low as 1500 rpm and continues to 4000 revs. The engine is paired exclusively with an eight-speed automatic transmission.

Dual-vane turbocharging and an electronic wastegate help keep lag at bay, and during a brief drive around General Motors’ proving ground in Milford, Michigan, the turbo four took off with the gusto of a naturally aspirated engine. The automatic transmission does the four-cylinder no favors, however, as it’s eager to reach its tallest ratio and apathetic to downshift when the accelerator pedal is floored.

Still, the little engine moved the big Silverado with plenty of pep off the line while emitting no noticeable vibration while on the go, at idle, or on restarting from a stop by way of its automatic stop/start system. Additional efficiency measures include variable valve timing, an electric water pump, and a cylinder-deactivation system that seamlessly cuts fuel to cylinders two and three if conditions permit. The use of an aluminum block helps make for an engine that weighs approximately 80 pounds less than the 4.3-liter V-6.

Chevrolet isn’t yet releasing trailer-tow ratings for the four-cylinder, nor is the bow-tie brand ready to share pricing or fuel-economy information for the 2.7-liter turbo. Presumably the turbo four will better the current rear-drive Silverado V-6’s EPA figures of 18 mpg city and 24 mpg highway. We’ll know more specifics as we get nearer to the truck’s on-sale date this fall.[/I]
 

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2019 CHEVROLET SILVERADO 1500 GETS 2.7-LITER INLINE-FOUR OPTION
MotorTrend
- Alex Nishimoto - May 18, 2018


Chevy gave us the basic facts of the 2019 Chevrolet Silverado 1500’s engine lineup when the truck debuted in Detroit earlier this year, but the automaker kept specs and other technical details close to the vest. Now, GM has given us a lot more info on the new pickup’s drivetrain options, including a complete download on an all-new turbocharged 2.7-liter four-cylinder—the 2019 Silverado’s surprise fifth engine choice.

Back in January, we quizzed GM’s head of global product development Mark Reuss on the possibility of the Silverado getting a four-cylinder engine. He declined to comment, but at the time we posited that a four-cylinder could be part of a new hybrid option. There’s no electrification here, but the new turbocharged 2.7-liter I-4 is still very high-tech. The turbo 2.7-liter was designed from the ground up as a truck engine, according to GM. As such, the gas-fed four-banger has a long stroke to deliver optimal low-end torque. The exhaust manifold is integrated into the cylinder head to reduce turbo lag, and the turbo itself uses a twin-scroll design for quicker spooling and better response down low. In addition, the new engine gets a trick variable valve lift system with three different camshaft profiles to choose from depending on the situation. The result is a four-cylinder that produces 310 hp and 348 lb-ft of torque, with that torque peaking from 1,500 to 4,000 rpm. GM expects the 2.7-liter to offer payload capacity comparable to the Ford F-150 XLT’s 3.3-liter V-6 and the Ram 1500 Big Horn’s 3.6-liter V-6. The 2.7-liter I-4 will replace the 4.3-liter V-6 in the Silverado LT and is the standard engine on the new Silverado RST. The engine also gets cylinder shut-off and stop/start tech.

GM announcing it will offer a four-cylinder engine in a full-size truck is the big news of the day, but we also learn much more about the 2019 Silverado’s other engines. The 4.3-liter V-6 will continue to be offered as the base engine in the Work Truck, Custom, and Custom Trail Boss, making the same 285 hp and 305 lb-ft as last year. Power ratings also remain the same on the 5.3-liter V-8 and 6.2-liter V-8, at 355 hp/383 lb-ft and 420 hp/460 lb-ft, respectively, but the engines are updated with stop/start tech and GM’s Dynamic Fuel Management system that can shut off as many as seven cylinders. Sadly, GM doesn’t give us any more details on its new 3.0-liter Duramax turbodiesel inline-six, which is due next year.

The 5.3-liter V-8 will be the optional engine on the Work Truck and Custom models, a group Chevy calls its “high-value family.” Both the V-6 and the 5.3-liter V-8 will come mated to a six-speed automatic transmission. In the LT and RST, the standard 2.7-liter turbo engine will come mated to an eight-speed automatic transmission, as will the optional 5.3-liter V-8. The 5.3 and eight-speed combo will be standard on the LT Trail Boss, LTZ, and High Country, with the latter two trims having the option of a 6.2-liter V-8 mated to the 10-speed automatic jointly developed by Ford and GM. The turbodiesel straight-six will be available on the LT, RST, LTZ, and High Country with a 10-speed auto.

When it launches in the third quarter of this year, the 2019 Silverado will be available in crew cab V-8 form. Regular and double cab models will arrive by the fourth quarter, along with the V-6 and turbo 2.7-liter I-4. Bringing up the rear will be the Duramax diesel in Early 2019. GM says EPA fuel economy estimates and payload and towing capacities will be announced closer to launch.
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