Re: Is there a difference in 2004 and 2005 lq9 engines?
Not sure what you are looking at for head gasket differences between 04 and 05 for the LQ9. If you're sure it's a LQ9 there shouldn't be any differences in those years. Only thing that may be different is the head stud kit if it's a super early 2004. Bottom end on the lq9 was pretty much the same all the way through the years. Floating pins and beefier rods. What is your concern?
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