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<blockquote data-quote="Bignick50" data-source="post: 1683485" data-attributes="member: 39504"><p>"Borrowed" this from another site...</p><p>Kevin</p><p><a href="https://gmauthority.com/blog/2021/01/chevy-silverado-1500-custom-currently-only-available-with-2-7l-i4-l3b-gas-engine/#comment-1065098" target="_blank">JANUARY 29, 2021 AT 10:16 AM</a></p><p>When you transmission has more gears it makes the engine do less work. If having more gears wasn't a good thing no over the road class 8 truck would have more than 3 or 4 gears… that is not the case. Compare any current model truck with a previous model that had fewer gears in the transmission. Newer models get better mpg because engine is doing less work.</p><p>The 2.7 Turbo 4 has a stroke longer then even the heavy duty 6.6 l gas engine. It produces torque lower in the RPM range and more efficiently because of turbocharging and variable valve timing.</p><p>Compare it to a 5.3 with a 4 speed automatic from late nineties. The 2.7 will out accelerate it and probably out tow it. I believe the horsepower and torque ratings on the 5.3 back then was less than what the 2.7 is now.</p><p>As far as durability, it'll probably last until we go all electric anyway.</p><p>The engine choice was limited to custom trim only not LT and above.</p></blockquote><p></p>
[QUOTE="Bignick50, post: 1683485, member: 39504"] "Borrowed" this from another site... Kevin [URL='https://gmauthority.com/blog/2021/01/chevy-silverado-1500-custom-currently-only-available-with-2-7l-i4-l3b-gas-engine/#comment-1065098']JANUARY 29, 2021 AT 10:16 AM[/URL] When you transmission has more gears it makes the engine do less work. If having more gears wasn’t a good thing no over the road class 8 truck would have more than 3 or 4 gears… that is not the case. Compare any current model truck with a previous model that had fewer gears in the transmission. Newer models get better mpg because engine is doing less work. The 2.7 Turbo 4 has a stroke longer then even the heavy duty 6.6 l gas engine. It produces torque lower in the RPM range and more efficiently because of turbocharging and variable valve timing. Compare it to a 5.3 with a 4 speed automatic from late nineties. The 2.7 will out accelerate it and probably out tow it. I believe the horsepower and torque ratings on the 5.3 back then was less than what the 2.7 is now. As far as durability, it’ll probably last until we go all electric anyway. The engine choice was limited to custom trim only not LT and above. [/QUOTE]
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