lq4 or lq9
05-10-2008, 03:55 PM
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lq4 or lq9
is thera a way to figure out if the 6.0 engine is a lq4 or lq9 just by looking at it or you have to look at the pistons. when i got mine they told me the engine came of a 2003 escalade any help will be appriciated
05-10-2008, 08:15 PM
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For that year the only way to tell is either look at the pistons or look at the rod ends. Pistons will be flat top and rods will be beefier but obviously you'll need to know what a LQ4 rod looks like for comparison.
05-12-2008, 09:16 AM
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where can i find the casting number? so the lq9 has flat pistons? wensday i will takit to work and im going to take a sparkplug out and borescope the pistons and see what i have thanks for the info
05-12-2008, 01:07 PM
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You can't cross reference the block numbers because both LQ4 and LQ9's use the same block. It's only the internals that are different.
LQ9's are flat top and LQ4's have a slight dish in the center.
LQ9's are flat top and LQ4's have a slight dish in the center.
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