Most 1999 GMC Express/Savana 3500 vans used a 5.7-liter V8 as the standard gasoline engine, with an optional 7.4-liter V8; a 6.5-liter turbo diesel was also offered in certain configurations.
In 1999, GMC offered the Express and Savana vans in several gross vehicle weight ratings, with the 3500 designation pointing to the heavier, more cargo- and passenger-capable chassis. Engine options varied by market and customer configuration, including gasoline V8s for stronger performance and a diesel alternative for better fuel economy on longer hauls. Vehicle owners and buyers should verify the exact engine using the VIN or original window sticker for a specific unit.
Gasoline engine options
Gasoline-powered 3500 models were typically equipped with one of two large V8 options. The following list highlights the common gasoline engines used in this configuration.
- 5.7 L V8 (350 cubic inches)
- 7.4 L V8 (454 cubic inches)
These gasoline engines offered strong torque for payload and towing needs, with the 7.4 L typically delivering more grunt for heavy-duty use.
Diesel engine option
Some 3500 vans could be ordered with a diesel powerplant, favored by fleets for fuel efficiency on long routes or high mileage. The diesel option was:
- 6.5 L Turbo Diesel V8
Diesel engines provided improved fuel economy and durability for fleet service, though they came with higher purchase and maintenance costs and different fueling requirements.
Notes on variability
Engine availability could differ by market, trim level, and production date. For a specific 1999 unit, check the vehicle’s VIN, build sheet, or original documentation to confirm the exact engine size installed.
Summary
The 1999 GMC Express/Savana 3500 commonly offered a 5.7 L V8 as the standard gasoline engine, with a 7.4 L V8 as an option, and a 6.5 L turbo diesel available on select configurations. Exact engine identification should be verified for any particular vehicle.
What motor comes in a GMC 3500 Savana?
STANDARD 4.3L V6 ENGINE. Get your passengers where they need to go with 276 horsepower and 298 lb. -ft. of torque.
How much is a 1999 GMC 3500 worth?
A 1999 GMC 3500 Trucks has a current resale value of $3,262 and trade-in value of $1,311.
What are the common problems with the Savana 3500?
GMC Savana 3500 Problems
- "No start" Caused By Failed Fuel Pump.
- Tail Light Wiring in Cargo Area May be Damaged.
- Fuel Level Sensor Failure.
- Flush brake fluid every 60,000 miles.
- Electrical components under front carpet may be damaged when cleaning van interior.
- Service transmission every 30,000 miles.
How many miles per gallon does a Savana 3500 get?
Is the GMC Savana 3500 Passenger fuel efficient? All trim levels of the 2017 Savana 3500 Passenger get 12 MPG, with 11 MPG in the city and 16 MPG on the highway.


