Newby 4.8 Towing Question

mcss1986 · Feb 19, 2018

I'm looking for a 2004 to 2006 4x4 ext short box for mostly general light duties and once in a while tow my 1986 Monte Carlo SS. Total trailer and load will be around 5500 lbs with two passengers and light cargo.

-Will the small 8 (4.8) be able to do this without overworking it?
-Are there any power enhancements to increase the torque and possibly improve gas consumption?

The plan is to keep this truck for a long time, restore it to new appearance and keep it looking that way. I think I have automotive OCD and cant tolerate driving a junky vehicle. I'll post pics of my hobby car soon.
Thanks
Ed in Toronto

RoughRiderZ71 · Feb 20, 2018

The 4.8 would do fine, but personally, i'd go with the 5.3L. More power, and not a significant decrease in fuel economy. For that platform, there are hundreds upon hundreds of aftermarket goodies for the 4.8 and 5.3. That platform is the 21st century version of the gen 1 small block chevy

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mcss1986 · Feb 25, 2018

Picking up a 2006 Sierra SLE 100K miles, with the 5.3 for a great price. One owner and all maint records. Biggest issue is the rockers - fender lip, floors and underbody is solid.
All in all a great vehicle for salt belt driven.