I'm just curious if anyone has fuel economy figure for the vortec 350's and 454's in a k2500 style truck. Is there much difference?

sqdqo · by **sqdqo** [OP] » Oct 03 2011, 9:35pm

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starspangled6.0 · by **starspangled6.0** » Oct 03 2011, 9:39pm

I got around 13-16 in my 1500 with the 350. I'm guessing you'd get around 12-15 in a 2500, with the 350 in it. From what I hear though, the 454 is worse... but it's really powerful

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sastoller · by **sastoller** » Jan 20 2012, 12:56am

I'm driving my parents '97 K1500 suburban with the 350 in it (until I buy a Silverado in a few months). It does pretty decent (even with 155k miles). Last I checked with probably a 30-70 city-highway mix of driving I was getting around 15.5 mpg. I estimate about 12 in the city and 17 or so on the highway...not bad for an old truck.

I'm just curious if anyone has fuel economy figure for the vortec 350's and 454's in a k2500 style truck. Is there much difference?

Vortec 350-454 fuel economy

Vortec 350-454 fuel economy

Re: Vortec 350-454 fuel economy

Re: Vortec 350-454 fuel economy

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