Ext. Differences LQ4/LQ9
#1
TECH Resident
Thread Starter
iTrader: (2)
Join Date: Apr 2004
Location: The Back Door...
Posts: 786
Likes: 0
Received 0 Likes
on
0 Posts
Ext. Differences LQ4/LQ9
Looing into getting an LQ9, probly from the junkyard. Is there anyway externally to tell the difference between the LQ4 and LQ9?? I know that you have to pull the plugs on the 4.8/5.3 and look at the pistons. Thanks in advance guys... i know that mistakes happen, but if someone was TRYING to rip me off I'd be pissed.
#2
TECH Enthusiast
iTrader: (3)
Join Date: Nov 2004
Location: West Plains, Missouri
Posts: 540
Likes: 0
Received 0 Likes
on
0 Posts
compression was main diff, like 9.41:1 on lq4, and 10:1 on the lq9 according to my service information 2000 (from gm dealership)
my lq4 has dish pistons,
Carcraft December 2004 issure says
both LQ4/LQ9 engines can use 317 casting heads, 210/75cc D shape exhaust ports, 71cc chamber.
i guess thing to look for is the dish pistons that the LQ4 has.
lq6 should be flattops.
good luck.
my lq4 has dish pistons,
Carcraft December 2004 issure says
both LQ4/LQ9 engines can use 317 casting heads, 210/75cc D shape exhaust ports, 71cc chamber.
i guess thing to look for is the dish pistons that the LQ4 has.
lq6 should be flattops.
good luck.
#4
TECH Addict
Join Date: Oct 2003
Location: Central, MA
Posts: 2,618
Likes: 0
Received 0 Likes
on
0 Posts
I don't know if there are any differences other than peeking in a plug hole...
I can check my motor tonight and read off some casting numbers on the block - if there are any? Maybe a few owners of both motors could compare?
I can check my motor tonight and read off some casting numbers on the block - if there are any? Maybe a few owners of both motors could compare?
#5
TECH Veteran
iTrader: (1)
I dont know of any external differences. Only thing I see on mie is the little 6.0 stamp at the front of the block. Hell maybe it has different block numbers on it, Im not sure. I dont have another motor to compare with. All I knew of was the pistons and rods. Dished on the LQ4 and flat tops in the LQ9. LQ9 has beefier rods too.
Thread
Thread Starter
Forum
Replies
Last Post