Uploaded September 2026 | Updated September 2026, 1 week ago
The 350 is back, the new 6.6L V8 makes 481 horsepower, and both new truck V8s lose the traditional dipstick. Tim Esterdahl visits GM’s powertrain event in Flint, Michigan, to get the details for the 2027 Chevrolet Silverado and GMC Sierra.
Hear from Mark Reuss, president of General Motors; Mark Dickens, executive chief engineer for GM’s full-size trucks and SUVs; and Randy Dufresne, design system engineer for GM’s Gen 6 Small Block engines.
We cover the 402-hp 5.7L V8, 481-hp 6.6L V8, updated 350-hp 2.7L TurboMax and 3.0L Duramax diesel. Then we get into the questions owners are asking: Why remove the dipstick? Does DFM remain? Why use 0W-30 oil? Why add port injection? What is GM doing about engine quality?
The port-injection clarification matters: the engineer says future emissions requirements drove that decision, rather than carbon buildup. We also discuss oil passages, swarf and the AI/data plan for tracking engine quality.
Which engine would you choose, and how do you feel about losing the dipstick? Tell us in the comments.
Full article:
pickuptrucktalk.com/2026/09/2027-silverado-sierra-v8-engines-power-dfm-dipstick
CHAPTERS
0:00 2027 Silverado and Sierra engine news
0:19 New 5.7L and 6.6L V8 engines
2:03 What changed in the Gen 6 V8 architecture
3:16 5.7L V8 towing capability
3:38 2.7L TurboMax upgrades and 10-speed automatic
4:56 3.0L Duramax range and DEF changes
6:37 Why GM moved to 0W-30
7:20 DFM remains and how it works
8:32 Why the dipstick is gone
9:28 Port injection and the carbon-buildup question
9:54 Revised oiling and variable oil pump
10:47 Oil passages, cleanliness and swarf
11:54 Mark Reuss on the AI plan
12:18 Validation and tracking engines and components
14:01 Final thoughts
Engine output, range and towing figures in the presentation are GM’s stated figures. Towing capability depends on the truck’s configuration.
More truck and SUV news and reviews: pickuptrucktalk.com
Subscribe: youtube.com/@Pickuptrucktalk
#ChevroletSilverado #GMCSierra #GMEngines
The 350 is back, the new 6.6L V8 makes 481 horsepower, and both new truck V8s lose the traditional dipstick. Tim Esterdahl visits GM’s powertrain event in Flint, Michigan, to get the details for the 2027 Chevrolet Silverado and GMC Sierra.
Hear from Mark Reuss, president of General Motors; Mark Dickens, executive chief engineer for GM’s full-size trucks and SUVs; and Randy Dufresne, design system engineer for GM’s Gen 6 Small Block engines.
We cover the 402-hp 5.7L V8, 481-hp 6.6L V8, updated 350-hp 2.7L TurboMax and 3.0L Duramax diesel. Then we get into the questions owners are asking: Why remove the dipstick? Does DFM remain? Why use 0W-30 oil? Why add port injection? What is GM doing about engine quality?
The port-injection clarification matters: the engineer says future emissions requirements drove that decision, rather than carbon buildup. We also discuss oil passages, swarf and the AI/data plan for tracking engine quality.
Which engine would you choose, and how do you feel about losing the dipstick? Tell us in the comments.
Full article:
pickuptrucktalk.com/2026/09/2027-silverado-sierra-v8-engines-power-dfm-dipstick
CHAPTERS
0:00 2027 Silverado and Sierra engine news
0:19 New 5.7L and 6.6L V8 engines
2:03 What changed in the Gen 6 V8 architecture
3:16 5.7L V8 towing capability
3:38 2.7L TurboMax upgrades and 10-speed automatic
4:56 3.0L Duramax range and DEF changes
6:37 Why GM moved to 0W-30
7:20 DFM remains and how it works
8:32 Why the dipstick is gone
9:28 Port injection and the carbon-buildup question
9:54 Revised oiling and variable oil pump
10:47 Oil passages, cleanliness and swarf
11:54 Mark Reuss on the AI plan
12:18 Validation and tracking engines and components
14:01 Final thoughts
Engine output, range and towing figures in the presentation are GM’s stated figures. Towing capability depends on the truck’s configuration.
More truck and SUV news and reviews: pickuptrucktalk.com
Subscribe: youtube.com/@Pickuptrucktalk
#ChevroletSilverado #GMCSierra #GMEngines
