telling a lq4 from a 1q9

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02-03-2009, 11:52 AM

#11

02_Orange_D1SC

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Quote:

Originally Posted by ap2002

only way to tell is to look at the pistons

LQ9 = flat top piston
LQ4 = dished piston

thats what i figured

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02-03-2009, 11:53 AM

#12

Justin00SS

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Quote:

Originally Posted by twolow02fransen

all the 03 ups had the dbw 99 to 02 had cable

Damn, thought I was onto something. The only other 6.0 I've looked at is a buddie's SSS in hawaii and it was dbw so I figured that was the difference.

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02-03-2009, 07:10 PM

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1FastBrick

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Quote:

Originally Posted by Mangled03gmc

The spacer was only on the 6.0 with the iron heads on it(99-early 00), once they got aluminum heads, they went with the shorter crank.. Pull a plug out and check the pistons, theres not a truly easy way to tell, unless you seen what it actually came out of..

You got that back wards 99-00 had a longer tail crank... in 01 they went to the shorter tail crank and used a spacer to compensate for use with the 4L80E Transmission

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02-03-2009, 07:15 PM

#14

OneQwikSS

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which one is better just out of curiosity

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02-03-2009, 07:15 PM

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clemsondave

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I'm kinda curious. Would numbers from a compression test be higher on an LQ9 than an LQ4. I understand that is not the purpose, but wouldn't the avg number be higher given the CR was higher?

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02-03-2009, 07:23 PM

#16

Mangled03gmc

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Quote:

Originally Posted by 1FastBrick

You got that back wards 99-00 had a longer tail crank... in 01 they went to the shorter tail crank and used a spacer to compensate for use with the 4L80E Transmission

LOL yah I did, I knew what I was thinking, just rushed, typed it out wrong

hey it was 6 in the morning LOL...

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02-03-2009, 07:25 PM

#17

nonnieselman

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same as tryin to tell the difference of a 4.8/5.3...

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02-03-2009, 08:03 PM

#18

1989k1500

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Quote:

Originally Posted by 2004RST

which one is better just out of curiosity

The lq9s have better rods until 05 then the lq4 has the good ones too. The lq9 is higher compression, that could be good or bad depending on what your doing with it.