6L help

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09-15-2005, 11:18 PM

#11

99Silver6.0

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Quote:

Originally Posted by white1

So just because a 6.0 was out of a Denalli it isnt necessarly a LQ9?

Not really. I thought so too till I did some digging and research.

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09-16-2005, 09:33 AM

#12

04Denali

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What's the differance between the LQ4 and The LQ9?
Mark

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09-16-2005, 10:11 AM

#13

gonzo 6.2

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Quote:

Originally Posted by 2004Denali

What's the differance between the LQ4 and The LQ9?
Mark

As far as the engine itself.
Pistons and rods

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09-16-2005, 10:15 AM

#14

Mort

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Check the vin # of the vehicle the engine came out of. If the 8th digit is a U the engine is a LQ4 if it is a N it is a LQ9.

The LQ9 has stronger rods and flat top pistons giving it 345HP vs 300HP for the LQ4.The flat top pistons give it a higher compression ratio. Sorry not sure of the exact ratio but maybe something like 10.1 vs 9.2? Otherwise the engines are the same I believe.