jking78 said:is there a difference between lq4 and lq9 and are they both 6.0
Both 6.0, to keep it simple, different pistons, dished for lq4 flat top for lq9 and the lq9 has more compression....if you can get a lq9 for a decent price then id get it but there usually alot higher...I have a lq4 in my car...