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Re: 4.8, Yes or No
Should be fine. They are the same basic engine.
We introduced the 4.8L engine originally (on the GMT800 program) in an attempt to get buyers to purchase the smaller V8 engine and get a little better fuel economy for themselves (and therefore help our fleet average).
There were two things that torpedo'd that plan:
a) The 5.3L ended up in an unexpected sweet spot - the fuel economy wasn't really that much worse and it ran quite a bit better performance wise.
b) Truck buyers tend to buy the biggest engine available, so it doesn't really matter what the attributes are of the smaller engine.
So - as I say - it should be fine. Same basic family as the 5.3, 6.0, 6.2 etc.
K
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