2027 Chevrolet Suburban Engines and Duramax Range
Webb Chevy Oak Lawn | (708) 423-9440 | 9440 S. Cicero Ave, Oak Lawn, IL 60453
Part of our 2027 Chevrolet Suburban buyer’s guide from Webb Chevy Oak Lawn.
Which engines can I get in the 2027 Suburban?
Three: the 5.3L V8 standard on LS through Premier, the 6.2L V8 standard on High Country, and the Duramax 3.0L turbo-diesel available on LT and above.
| Engine | Horsepower | Torque | Availability |
|---|---|---|---|
| 5.3L EcoTec3 V8 | 355 hp | 383 lb.-ft. | Standard on all trims except High Country |
| 6.2L EcoTec3 V8 | 420 hp | 460 lb.-ft. | Standard on High Country; available on RST, Z71, Premier |
| Duramax 3.0L Turbo-Diesel | 305 hp | 495 lb.-ft. | Available on LT, RST, Z71, Premier, High Country |
Is the Duramax diesel worth it?
If you drive a lot of highway miles, yes. The Duramax makes the most torque of the three at 495 lb.-ft. and is rated for up to 728 miles of EPA-estimated maximum highway range per tank.
For Oak Lawn families who road-trip to Wisconsin, Michigan or downstate Illinois, fewer fuel stops is the practical payoff. Super Cruise is now available with the Duramax too.
Should I choose the 5.3L or the 6.2L V8?
The 5.3L handles daily driving and most towing comfortably. The 6.2L adds 65 hp and 77 lb.-ft. for buyers who tow near the limit or simply want stronger acceleration merging onto I-294.
What is Dynamic Fuel Management?
Both gas V8s use Dynamic Fuel Management, which can deactivate cylinders under light loads to save fuel and reactivate them instantly when you press the throttle.
Key Takeaways
- Three engines: 5.3L V8 (355 hp), 6.2L V8 (420 hp), Duramax 3.0L diesel (305 hp).
- The Duramax produces the most torque at 495 lb.-ft.
- Duramax range is up to 728 miles EPA-estimated maximum highway per tank.
- All three use a 10-speed automatic transmission.
- The 6.2L is standard on High Country only.
Frequently Asked Questions
What is the most powerful 2027 Suburban engine?
The 6.2L EcoTec3 V8 at 420 horsepower and 460 lb.-ft. of torque.
Which trims offer the Duramax diesel?
LT, RST, Z71, Premier and High Country.
How far can a Duramax Suburban go on one tank?
Up to 728 miles of EPA-estimated maximum highway range. Actual range varies with driving conditions.
Can I test drive both a gas and diesel Suburban in Oak Lawn?
Call Webb Chevy Oak Lawn at (708) 423-9440 and we will line up both powertrains when they are in stock.
Starting MSRP figures are Chevrolet published prices for the 2027 Suburban and exclude destination freight, tax, title, license and dealer fees. Towing and range figures are manufacturer estimates; always check the trailering label on the specific vehicle before towing.
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