What are the differences between the LQ4 and 9?
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LQ9,s all had aluminum heads. LQ4 had iron heads until 01-then they were alum.
LQ9 also has higher compression. Otherwise they are very similar but the LQ4 is probably cheaper and easier to find.
LQ9 also has higher compression. Otherwise they are very similar but the LQ4 is probably cheaper and easier to find.