Disappointing article- GM updates!
https://gmauthority.com/blog/2021/05/silverado-hd-sierra-hd-powertrain-updates-incoming/ Not sure why they would publish this and not have any updates,or did I miss something here. I'm very int...
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I love the way the current GMC HD looks, but not the Chevy. When GM came out with the power numbers for the 6.6L gas engine I kind of figured they were sandbagging a little because an engine that size should easily be around 420-430 hp.
