Vortec 6.2 Liter LS3 Engine and 4L60HD Transmission Conversions for the Hummer H3
Mash Motors Inc. is the first company to successfully convert the Hummer H3 with the Vortec 6.2 Liter LS3 engine and 4L60HD transmission by GM.
Horsepower and MPG Expectations
The base conversion package starts out with 325 horsepower. With performance upgrades and modifications, the horsepower can can be increased to 495. The biggest gain from the conversion is the increased fuel mileage and towing capabilities that a stock H3 lacks.
Each conversion is completed per the customer’s specific requests and therefore, build time is approximately 35 days for the H3. This ensures that each conversion is completed properly and the vehicle has been thoroughly inspected and road tested prior to delivery.