Identifying a LQ9......hopefully not a LQ4.
10-04-2007, 09:16 PM
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Staging Lane
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Identifying a LQ9......hopefully not a LQ4. Hey guys. Just bought a (hopefully) LQ9 6.0L that is apparently out of a '05 Escalade. I have searched all over and checked every number i can find on the block and heads, but i can't find anything that will tell me whether it is a LQ9 or LQ4. This motor will be going into my 1976 Chevelle with a 4L60E behind it. Any help is appreciated.
10-04-2007, 09:55 PM
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I wouldn't take this as gospel, but I've read that if the piston tops (when at TDC) are roughly flush or level with the block, then it's the LQ9. If they're dished/recessed a bit, then it's the LQ4. (Of course, that means you'd likely have to pull a head...)
Don't know that I'd worry too much about it, since it's only a half-point of compression - but then again, if it was sold as an LQ9, it should be an LQ9. Good luck.
Don't know that I'd worry too much about it, since it's only a half-point of compression - but then again, if it was sold as an LQ9, it should be an LQ9. Good luck.
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10-04-2007, 09:57 PM
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I'm getting a 6.0 out of a 2002 3/4 ton truck. Which would this be, a LQ4 or LQ9 and what is really the difference in the two. I'm going to be doing an LS1 Mustang swap. Thanks
10-05-2007, 07:57 AM
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Unless I was being dumb, I tried to look into the the cylinder through the plug hole last weekend of my LQ4 and could'nt make out the top of the piston. I did see the piston, but could not decypher which part i was seeing, im assuming it was the top, but being covered in carbon I couldnt make out the dish.
10-05-2007, 05:27 PM
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I'm not really worried about which it is. More that i got what i paid for. I'll pull some plugs and take a look, see if i can figure it out that way. It does have 317 heads.
