Stuff you need to switch over to an LSX platform.

V

vdrivegrimes

New member
could you use factory manifolds run an exhaust pipe with a u-bend to act like a snail them rubber exhaust hose to the tips. maybe ceramic coat them to keep the heat down in the engine bay


 
spd500

spd500

New member
think.gif That might be too redneck for even me . But I bet that is what Patch has on his boat  :smile30:
 
G

Gold Member

New member
KONA said:
Motor Head said:
I guess the guys that designed the newer chevy motor for the cup cars realised that ford had it in the right spot all along lol!
Click to expand...

:smile16:  and it sounds like they copied the heads too....  crazy.gif
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You know what they say, if you cant beat them join them! :smile30:
 
B

blazeracer

New member
Been doing more reading and searching... There's a BIG $$$ difference between a 2000 Camaro all aluminum 5.7 motor and a 2000 Yukon 4.8 iron block motor.

http://www.automotix.net/usedengines/2000-chevrolet-camaro-inventory.html?fit_notes=01a0e9fd33f0e7d9bbccb8cdbae63772&seq_num=2

http://www.automotix.net/usedengines/2000-gmc-yukon-inventory.html?fit_notes=803964e72d85c5bf7ef2f1b4b8a103fd&seq_num=1

Now this one is not too bad of a deal with harness and computer.

http://dallas.craigslist.org/sdf/pts/2711418011.html


EDIT: The 4.8 in the linked ad is under $400 shipped, $461 for a 2004 5.3 shipped.
 
B

blazeracer

New member
More info, due the short stroke and long rod length of the 4.8 it has the longest TDC duration of all LS series engines, LOVES to be cammed big and boosted, and can easily turn 8,000 rpm's.

Check out this boosted 4.8 making over 1,200 horsepower on a STOCK bottom end.

http://www.performancetrucks.net/forums/forced-induction-159/ls-power-twin-76mm-turbo-4-8l-1200hp-still-going-485734/
 
B

blazeracer

New member
Another question for Fomula. Would you have the guy doing the harness rewire put a 10ft (or whatever is needed) cable for the OBDII port so it can be connected up front and tuned on the water? Seems that would be a good investment.
 
Last Mohecian

Last Mohecian

Administrator
blazeracer said:
Last Mohican said:
blazeracer said:
http://dallas.craigslist.org/mdf/pts/2694988313.html        think.gif
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That would be sweet on my Avalanche.
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It would, but I don't think the rear end can handle that kind of power. It would be better in a jet boat. LOL
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My spending is on hold until I know how much out of pocket this back surgery is going to be anyway.  Would still be cool though.
 
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blazeracer

New member
Gen 3 engine
LS1 - 5.7L aluminum block, cathedral port heads
LS6 - 5.7L aluminum block, cathedral port heads - the block is different internally than the LS1
LR4 - 4.8L iron block, cathedral port heads
LM7 & L59 - 5.3L iron block, cathedral port heads
LM4 & L33 - 5.3L aluminum block, cathedral port heads
LQ4 - 6.0L iron block, cathedral port heads
LQ9 - 6.0L iron block, cathedral port heads, 10:1 CR


What vehicles had this motor??
 
B

blazeracer

New member
Last Mohican said:
blazeracer said:
Another question for Fomula. Would you have the guy doing the harness rewire put a 10ft (or whatever is needed) cable for the OBDII port so it can be connected up front and tuned on the water? Seems that would be a good investment.
Click to expand...

Just buy an OBDII extension cable.

http://www.obd2cables.com/products/cable-j1962m-to-j1962f-obd-ii-extension-cable-10ft.html
Click to expand...

Matt, this is GREAT info. I hope you're not down for too long after your surgery.
 
Last Mohecian

Last Mohecian

Administrator
blazeracer said:
Gen 3 engine
LS1 - 5.7L aluminum block, cathedral port heads
LS6 - 5.7L aluminum block, cathedral port heads - the block is different internally than the LS1
LR4 - 4.8L iron block, cathedral port heads
LM7 & L59 - 5.3L iron block, cathedral port heads
LM4 & L33 - 5.3L aluminum block, cathedral port heads
LQ4 - 6.0L iron block, cathedral port heads
LQ9 - 6.0L iron block, cathedral port heads, 10:1 CR

What vehicles had this motor??
Click to expand...

I believe the LM4 was trailblazer and envoy.

EDIT:  Little info here.

http://ls1tech.com/forums/generation-iii-internal-engine/677174-what-difference-between-lm7-lm4-l33-l59-5-3l.html
 
Last Mohecian

Last Mohecian

Administrator
blazeracer said:
Matt, this is GREAT info. I hope you're not down for too long after your surgery.
Click to expand...

Thanks James.  A friend of mine went for the same surgery with the same surgeon.  His was the same disc and it was herniated 13mm. Mine is 17mm.  He went in for his first visit on Friday and the surgeon had him in surgery on the following Monday because his disc was so bad.  He was back to work about a week after surgery.  Hopefully mine goes the same way.  My apt with the surgeon is on the 8th.  Should know more then.
 
spd500

spd500

New member
I have been thinking LQ9 , is the LM4 a better fit for jetboat application ? Or do you mainly want the all aluminum motor ?
 
B

blazeracer

New member
spd500 said:
I have been thinking LQ9 , is the LM4 a better fit for jetboat application ? Or do you mainly want the all aluminum motor ?
Click to expand...

I would LIKE an all alunimum motor, but will probably run an iron block LM7 due to low initial cost to get it in and running. You'll pay good money for an LQ9.

http://info.automotix.net/usedengines/2003-cadillac-escalade-inventory.html?fit_notes=6cf14a8ae2ea8c22a7b424b659ebd691&seq_num=5

 
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