Lq4/lq9?
#1
Staging Lane
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Lq4/lq9?
Is the compression the only difference between these two 6.0's? They are only 10hp different from the Denali and Escalade. Just wondering if anything else was different?
#4
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possibly, but not for the right reasons...I'm not sure how the compression is different (different piston top, different heads) ..... ok, after some research i found that the heads have different part #'s (12562317 for the LQ4 ('02 and up) and 12572317 for the LQ9) both have 210cc intake valves and 75cc exhaust and both have 71.06cc combustion chamber volume (including gasket).
so, the difference must be in piston shape
BTW cams are the same for both motors. LQ4 has been around since '00 and the LQ9 since '02.
so, the difference must be in piston shape
BTW cams are the same for both motors. LQ4 has been around since '00 and the LQ9 since '02.
#6
Tribe Shaman
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as far as most of us know, the only diffrence between
the LQ4 and the LQ9 is the pistons, LQ4 dish, LQ9 flat top and coated,
and the rods on the LQ9 is a little thicker when compaired to the LQ4.
the LQ4 and the LQ9 is the pistons, LQ4 dish, LQ9 flat top and coated,
and the rods on the LQ9 is a little thicker when compaired to the LQ4.