How to tell if I have a LQ9 or LQ4 this gets weird
#14
I have the LQ9 rods for sure by looking at the pics. I will have to print the rest of the pics off and take them home with me after work. I should be able to tell by the underside of the piston skirt design if it's an LQ9 piston or not. Thanks a ton 67SS509, these pics are exactly what I was looking for. It'll be my luck it's got LQ9 Rods but LQ4 pistons. I'll be tickled if it's an LQ9 as I won't be shopping for 243 heads anymore
#16
Adkoonerstrator
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Almost forgot I had these pics but, here are some pics of LQ4 pistons/rods I had. I don't know what year they were though, maybe '01.
Click Here
Click Here
#17
Well, I went home last night to compare. I most definatly have the heavy duty Lq9 connecting rods, however after comparing those first set of pictures it appears as though it's an LQ4 with HD rods. I took a phillips screwdriver gently through the sparkplug hole and went to the cyl wall, then drug it across the top of the piston. About 1/4" inch away from the wall I felt the screwdriver dip. I'm almost positive they're dished. I did this a few times and got the same result everytime. Interesting that this motor would have the HD dimpled rods but lower compression. Anyways, for anyone who is going junkyarding with a 5/8" spark plug socket and flashlight, good luck telling if your motor is a LQ4 or LQ9. You need a LONG phillips screwdriver as well
#18
TECH Junkie
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Glad you figured it out though
#19
Apology if I just barged in to your conversation. I'm new to this website, still learning how to navigate.
I have a 2001 silverado hd and am wondering if a 6.0 out of a 2003 escalade will swap with my original 2001 engine. thanks
I have a 2001 silverado hd and am wondering if a 6.0 out of a 2003 escalade will swap with my original 2001 engine. thanks