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Vortec engine

Which one? I have two - a v-6 and a straight 6.
Both have fair fuel economy, (19+mpg) adequate power. My only complaint is that they learn how you drive, and if you drive like an old lady, and then suddenly act like a kid, they"re pretty sluggish.
 
got a 96 suburban gets 17 mpg always and a trailblazer that gets i6 it's a v-6 plenty power the suburban is v-8 all the power it needs with plenty to spare only fault i can find is the intake gaskets but that's usually well over 10000 but replace with FELPRO GASKETS and forget about it
 
(quoted from post at 02:11:23 10/16/09) Hi, the engine in question is the 5.3 L .Thanks Murray
Click to expand...

Good motors. Fuel economy will depend somewhat on what its in, but for the most part look for high teens on the highway and mid teens in town. Commonly have a piston slap noise on cold start-up but doesn't seem to cause any long term reliability issues (my dad has but over 400k miles on two 5.3's with piston slap). Power is good although they make most of their power up higher in the RPM range than the older 350's but they still have decent power down low. A custom computer tune really wakes them up, and makes them much more snappy off the line. But all around a good motor.
 
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