The 6.6L L8T gasoline engine replaces the 6.0L V-8 in Chevrolet and GMC 2500HD/3500HD applications. At 401 horsepower and 464 lb-ft of torque, the 6.6L offers significantly greater…

Motorization

Typically we have found you can expect to get 60,000 to 80,000 miles on an unaltered motor. However, because gradual wear will “round-off” firing points over time, the…

Motorization