New 6.6-liter V8 gas engine on 2020 Silverado HD

Mike Kociba, assistant chief engineer of small block engines at GM, introduces the new 6.6-liter V8 gas engine that’s available on 2020 Silverado HD pickups. Check out our website for more https://www.hardworkingtrucks.com

GM Lost a BILLION Dollars Because of THIS Engine!
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GM Lost a BILLION Dollars Because of THIS Engine!

Chevy 2500 6.6L GAS Engine (L8T) **HEAVY MECHANIC Review** | How Good of an Engine Is It??
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Chevy 2500 6.6L GAS Engine (L8T) **HEAVY MECHANIC Review** | How Good of an Engine Is It??

2020 Chevy Silverado 2500 6.6-liter gas on mountain roads
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2020 Chevy Silverado 2500 6.6-liter gas on mountain roads

I Created a Spreadsheet to Decide: Gas vs Diesel Truck?
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I Created a Spreadsheet to Decide: Gas vs Diesel Truck?

Toyota Replaced Thousands of These Engines
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Toyota Replaced Thousands of These Engines

I Tested Every 2025 HD Gas Engine — Here’s My Ranking Best to Worst as a Diesel Mechanic
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I Tested Every 2025 HD Gas Engine — Here’s My Ranking Best to Worst as a Diesel Mechanic

GM Just ENDED the V8 Debate — The 2026 6.6L Engine Numbers Surprised Us
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GM Just ENDED the V8 Debate — The 2026 6.6L Engine Numbers Surprised Us

🤔 What's so special about the LS? | TECHNICALLY SPEAKING |
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🤔 What's so special about the LS? | TECHNICALLY SPEAKING |

Rolls-Royce Built A V12 With No Valves That Could've Powered A 5,000 HP Spitfire!
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Rolls-Royce Built A V12 With No Valves That Could've Powered A 5,000 HP Spitfire!

How Efficient Is the New Chevy Silverado HD Gasser? Hint: There’s a HUGE Difference Towing & Not!
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How Efficient Is the New Chevy Silverado HD Gasser? Hint: There’s a HUGE Difference Towing & Not!

Chevy 2500 6.6L L8T V8 Review | GM’s MOST RELIABLE Engine They Still Build
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Chevy 2500 6.6L L8T V8 Review | GM’s MOST RELIABLE Engine They Still Build

Forget the Duramax! This New Chevy Silverado HD Gasser SURPRISES on the Denver 100 MPG Loop!
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Forget the Duramax! This New Chevy Silverado HD Gasser SURPRISES on the Denver 100 MPG Loop!

RECALLED GM L87 6.2L ENGINE TEARDOWN! Manufacturing Defect Causes INSANE Damage
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RECALLED GM L87 6.2L ENGINE TEARDOWN! Manufacturing Defect Causes INSANE Damage

The REAL Reason New Engines Are BLOWING UP So Early (Toyota, GM, Honda)
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The REAL Reason New Engines Are BLOWING UP So Early (Toyota, GM, Honda)

302 Ford vs 305 Chevy at 7,000+ RPM - Who Survives?
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302 Ford vs 305 Chevy at 7,000+ RPM - Who Survives?

Chevy 2500 6.6L L8T V8 GAS Fuel Economy (MPG) | How BAD Is It Really?
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Chevy 2500 6.6L L8T V8 GAS Fuel Economy (MPG) | How BAD Is It Really?

Best Engine Ever…🔥 Rare Old Engines Starting Up Sound That Will Blow Your Ears
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Best Engine Ever…🔥 Rare Old Engines Starting Up Sound That Will Blow Your Ears

I Measure L8T Oil Consumption Over 5,500 Miles in My 2024 GMC Sierra 2500 HD with 6.6L Gas Engine
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I Measure L8T Oil Consumption Over 5,500 Miles in My 2024 GMC Sierra 2500 HD with 6.6L Gas Engine

GM Just LEAKED the L8T Replacement – The V8 They Didn’t Want You To See
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GM Just LEAKED the L8T Replacement – The V8 They Didn’t Want You To See

How To Build a 600HP 350 Small Block Chevy Engine (Ep. 1) - COMPLETE GUIDE!!
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How To Build a 600HP 350 Small Block Chevy Engine (Ep. 1) - COMPLETE GUIDE!!