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i need ls1 engine at least 550HP

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Old 03-14-2008, 08:45 AM
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Default i need ls1 engine at least 550HP

Hi all

I have Lumina coupe 2003 same as GTO 2004 exactly. i want to modify my car completely so i need custom ls1 long block or complete with 550HP minimum custom 4l60 that can handle this engine also differential & axles and don't forget the suspension parts that should be changed because i need all this power go to the tire perfectly without a lot of wheel hop.

What you recommend no problem for big names or not but a good price for value

Thanks
Old 03-14-2008, 09:01 AM
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my car is DD
Old 03-14-2008, 09:17 AM
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I'm guessing you're in Australia, so I would definitely work with someone there. As for your goals, it's gonna be hard to reach 550 crank hp on a stock displacement ls1 and still be DD friendly. Go with a 400+ inch stroker and good heads (AFR, TrickFlow, etc), and you can hit that pretty easy.
Old 03-14-2008, 10:14 AM
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if you are going to build a motor get more cubes.

if you are in Australia- get the APS kit to go with the new motor and you will have 550+ reliable HP.

Then all you have to worry about is getting it to the ground.
Old 03-14-2008, 10:22 AM
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DD and 550 RWHP? that is a tall order.

Yes LS6 motors can achive 550 rwhp on NA but not as a daily driver. a pure race engine, with light wt rotating assemblies, great heads, cam, dry sump system. Light wt clutch and drive shaft. Heavey duty trans and diff.

Plus a coil over suppension system to help.

Might as well take out one of the engines out of Holden Super V8 race cars.
Old 03-14-2008, 10:49 AM
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DD LS1 factory displacement and 550rwhp?
Not happening it would have to be a race motor!
Now if you take an LS1 hone it out to 3.903" and stroke it to 4.000" to get 383ci might get you there N/A but i dought it.
Old 03-14-2008, 11:20 AM
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If you didn't rule it out, I'd look into superchargers. That'd be the best way to make it 550 hp and still daily driveable.
Old 03-14-2008, 01:45 PM
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550 rwhp NA, DD, and stock cube...forget about it...

You didn't mention the $ you want to throw in it!!!

Christian
Old 03-14-2008, 02:07 PM
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Where did he say RWHP?? 550fwhp souldnt be a problem at all..everyone on this site makes that..well, almost everyone.
Old 03-14-2008, 04:33 PM
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Hi guys

am not in Australia also i didn't say that i need heads or cam, i want long block or complete engine and i didn't said stock displacement any engine but i need it ls1 so it will fit my car without modifications
so what shops or company's can do it and what is there sites

thanks for replaying
Old 03-14-2008, 05:25 PM
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heads/cam and some spray should get u 550rwhp!! but you would definitely need to beef up that tranny before trying to push that much power.
Old 03-14-2008, 06:00 PM
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Location: SA

saudi arabia????? btw unless you already have a good set of flowing heads and a big cam you might just want to supercharge it
Old 03-14-2008, 06:03 PM
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Originally Posted by TXZ28LS1
heads/cam and some spray should get u 550rwhp!! but you would definitely need to beef up that tranny before trying to push that much power.
Thanks for replaying

but i don't like spray and as i told u i need long block or complete engine ls1 ready to install
Old 03-14-2008, 06:10 PM
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Originally Posted by King Nothing

btw unless you already have a good set of flowing heads and a big cam you might just want to supercharge it
the car al ready has 415rwhp with heads cam & 42injectors but i need a new long block & complete engine other than mine of course with big stroker heads & cam but i want a custom shop that install all parts & guarantee the HP
Old 03-14-2008, 09:02 PM
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speedinc...........
Old 03-14-2008, 09:51 PM
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to hard without power adder or big ci
Old 03-14-2008, 10:13 PM
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wow these threads get started at least once a week..

we should just make them all stickies
Old 03-15-2008, 09:41 AM
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Originally Posted by LS1-NAVY
to hard without power adder or big ci
i know it will not come without big cubic so what u advice me to get long block ls1 wtih more than 550hp natural aspirated no matter of size ci
Old 03-15-2008, 09:46 AM
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Originally Posted by 01slowbird
speedinc...........
Thanks for this site but do u have any info about 4l60 & differitial modifications
Old 03-15-2008, 10:11 AM
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We can set you up with a mild manner'd 402+ inch motor.

for built 4l60e's check out FLT's transmissions that we sell.

http://www.ls1speed.com/catagory.cfm...y=Transmission


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