Forum Discussion

Groover's avatar
Groover
Explorer II
Oct 20, 2018

A new gas engine for GM heavy duty trucks is coming

A new 6.6L engine with 400hp and 450lbft of torque is coming for 3/4 ton through medium duty GM trucks. It will have all of the new fuel saving tech and seems to emphasize torque over horsepower. It...
Tow Vehicles
George3037's avatar
George3037
Explorer
Oct 27, 2018
More HP and torque of this new gas 6.6 should make it work less in GM trucks where the truck weight is similar to previous years. It would be nice to see this 6.6 get a few more MPG than the 6.0.

About Travel Trailer Group

44,029 PostsLatest Activity: Jan 21, 2025