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Lmarth

12-21-2007 05:26 PM

07 Chevy Trucks w/5.7 Aluminum block

Does anybody have any experience or recommendations regarding this new generation 5.7L variable displacement engine that has an aluminum block? I believe this new motor is referred to as the "M" engine.

320es

12-22-2007 11:00 AM

Chevy doesen't make a 5.7l anymore. DO you mean the 5.3L? There isn't a great deal of difference compared to the old 5.3. IT still sounds like it will explode when your towing but it gets a little better mileage when empty.

Lmarth

12-22-2007 01:02 PM

I meant the 5.3L. Its hard to unlearn many years of the old small and big block Chevys. Thanks for catching my mistake!

redcorvetteman3

12-22-2007 01:08 PM

Quote:

Originally Posted by Lmarth (Post 2380782)

I meant the 5.3L. Its hard to unlearn many years of the old small and big block Chevys. Thanks for catching my mistake!

I have an 07 NBS but it is not alum. I love the truck but I have had a few little problems but dealer fixed them. All but the cloth black seats. They collect lint like a piece of tape. There is a TSB for it but GM has not got a fix for it yet.

Mike

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