Generation IV Internal Engine - ls2 600 rwhp

is it possible to have a 600 rwhp GTO with a stock cube ls2??
I don't mean stock bottom end I mean with better pistons, rods, heads and crank.
what do you guys think? If no then realistally how close can I get to this goal?

yes, we made 809 whp on a cammed and stock bottom LS2 in a twin turbo saturn sky!

http://www.youtube.com/watch?v=ICgb2_VF1hM

Go with the ls3 top end or FI and yea probably. Don't know about it being very street friendly though..

Go with the ls3 top end or FI and yea probably. Don't know about it being very street friendly though..

Unless I am missing some key piece of information the OP posted, it will be a walk in the park to make 600rwhp with a built stock cubed LS2 with FI on it. You could do it with a totally stock longblock.

Now hitting 600rwhp while N/A with a stock cubed built LS2 would be a pretty good challenge. I know that low-middle 500's have been done while N/A but I don't know about 600rwhp. I am sure someone has, but it probably was neither a cheap build nor considered "streetable".

I know I can get 600+ w/nos or boost. Hell my stock bottom end ls1 GTO put down 620rwhp on a 150 shot. I want to build a stock cube engine capable of 600rwhp(ish) then spray the balls off it(250-300 shot)

I know I can get 600+ w/nos or boost. Hell my stock bottom end ls1 GTO put down 620rwhp on a 150 shot. I want to build a stock cube engine capable of 600rwhp(ish) then spray the balls off it(250-300 shot)

You're going to need lots of compression, badass heads/intake, lots of cam and lots of rpm to make 600rwhp N/A with only 364ci. That's starting to flirt with 2hp per cubic inch, and that ain't cheap to do no matter how you shake it.

Are we talking rwhp or at the flywheel? There have been several LS2 stock-cube builds that have been over 500rwhp, which would translate to almost 600FW hp (assuming 15% parasitic loss).

I'm looking to get as close as I can to 600 RWHP. I talked to livernois and they say to set my sights a little lower like around 500-525 RWHP, then spray it

600 RWHP on a fully forged stock cube engine is a cake-walk with nitrous. Do it.

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I want 525-600 rwhp NA then spray 250-300 to it and have 775-900 rwhp

I want 525-600 rwhp NA then spray 250-300 to it and have 775-900 rwhp

You're not gonna make 600 RWHP with 347 cubic inches.....unless you spend $20,000 and use race gas with a solid roller.....and a stock sleeved block won;t last anyway, you'll need a resleeved block so you have good wall thickness for that GIGANTIC nitrous shot you plan to use, so you don't blow head gaskets every time you spray.

Even 525 RWHP with stock cubes is tough and it will not take that big shot anyway because of what I mentioned above.

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Just build a 427 for the same amount of money you will spend on a serious 347 build...then you're good to go and it will last.

Use an LS1 block, they are the strongest blocks of all the aluminum LSx family of blocks.

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You're not gonna make 600 RWHP with 347 cubic inches.....unless you spend $20,000 and use race gas with a solid roller.....and a stock sleeved block won;t last anyway, you'll need a resleeved block so you have good wall thickness for that GIGANTIC nitrous shot you plan to use, so you don't blow head gaskets every time you spray.

Even 525 RWHP with stock cubes is tough and it will not take that big shot anyway because of what I mentioned above.

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isn't a ls2 364 ci and a ls1 347???
as far as the GIGANTIC shot as you stated above this is just starting to be a man shot hell I'm trying to squirt 500 plus to the thing

I'm looking to get as close as I can to 600 RWHP. I talked to livernois and they say to set my sights a little lower like around 500-525 RWHP, then spray it

Best advice you're gonna get right there.....you're talking about an all out high maintenance race motor to hit 600rwhp n/a with 364ci.

Nick Williams has come close to 600 N/A on his LS2 Vette with a plastic intake even IIRC....

Call him>>> Dyno Tuning Installations 1145-C Gateway Dr.
Mooresville, NC 28115
Tel: 704-658-2302 Z06 APS TT Install

Mailing Address:
Williams Performance
1145-C Gateway Drive
Mooresville, NC
28115 USA
Phone: 704-658-2302

Hours of Operation:
Monday - Friday 8:00am - 5:00pm EST

isn't a ls2 364 ci and a ls1 347???
as far as the GIGANTIC shot as you stated above this is just starting to be a man shot hell I'm trying to squirt 500 plus to the thing


Oops, yes.....just so used to typing 347ci when thinking a stock cubed engine.

500 shot........thats a serious purpose built engine man. Probably not gonna last too long, meaning regular rebuilds periodically.

Why are you stuck on stock cubes?

Its easy to make power with big shots, but why not build a larger cube engine so its not such a full race build with stock cubes, and have a nice long lasting engine to spray.

My friend had a 422ci iron engine built by a local shop here, it made 535 RWHP N/A on pump gas, and 880 RWHP on a 300 shot with a stand alone tank with race gas in it that sprayed his DP system. The engine is still fine after 6 years in his daily driver.

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Easily done, but expensive to the point that 1.9+ hp/cid 364's are, shall we say.. uncommon. :D

Even 500rwhp will be doable with a higher compression h/c/i build. Then throw a small 75 shot and that will easily net you 600 rwhp.

Or you can settle for 450-475 n/a and do a slightly bigger shot.

Add a 4.1" stroker crank and some TFS 235cc heads.....

What's the reason for wanting stock cubes? A stroker will give you the power with much more tolerable street manners, with no real increase in cost compared to a forged stock cube rotating assembly.

Yea, he doesn't realize that a stock cubed 500+ RWHP engine is going to idle like a piece of shit....probably smell terrible of gas and exhaust when sitting still and hard to tune.......unless you like monster lope....then its cool.

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ok so the consensus is build a stroker then. that will work. I have seen several f-bodies that have had 408's and they were less than inpressive and I have seen some very impressive ls2's making 450 with as I was told a mild cam(not much lope) that's kinda why I asked this question to the guys I feel know quite a bit. So saying a stroker build what would be a good ci to try for??? oh and by the way I mis-stated a ealier post, meant to say I'm not trying to spray 500 shot. I will only want to spray 200-300 maybe.

yeah if you re going to go threw the process of rebuild you should stroke it.

and 600 is going to be hard to reach and be anywhere near streetable.

for a comparrison my ls3 418 with cnc ported heads and one of the bigger cams LG makes put down 505 hp in a auto GTO so in my manual setup it should see 540 or more with my setup. this is a totally streetable engine however no solid roller or anything but still can run u to 7000 rpms just dosnt make power after 6500 or so

ok so the consensus is build a stroker then. that will work. I have seen several f-bodies that have had 408's and they were less than inpressive and I have seen some very impressive ls2's making 450 with as I was told a mild cam(not much lope) that's kinda why I asked this question to the guys I feel know quite a bit. So saying a stroker build what would be a good ci to try for??? oh and by the way I mis-stated a ealier post, meant to say I'm not trying to spray 500 shot. I will only want to spray 200-300 maybe.

Whats your goal man............your final goal....what type of racing do you want to do with it? Or what FUN?

My friend has a 422ci iron block with an LS6 intake and ported LS6 heads, mild cam somewhere in the 230's, idles very close to stock. It made 535 RWHP. He has been spraying a 300 shot for like 6-7 years with it and its still running like a champ. It makes 880 RWHP on the 300 shot.
He drives around on full time 93 octane....and has a stand alone tank with race gas that feeds the DP system.

Will that make you smile.....:D

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Whats your goal man............your final goal....what type of racing do you want to do with it? Or what FUN?

My friend has a 422ci iron block with an LS6 intake and ported LS6 heads, mild cam somewhere in the 230's, idles very close to stock. It made 535 RWHP. He has been spraying a 300 shot for like 6-7 years with it and its still running like a champ. It makes 880 RWHP on the 300 shot.
He drives around on full time 93 octane....and has a stand alone tank with race gas that feeds the DP system.

Will that make you smile.....:D

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I drive it to work sometimes and the only racing I do is drag racing.
as for make me smile nah make me giggle like a little girl probably.

what block is he running???

To be streetable set your goal to say 480-520 RWHP. This would be in a 400-416 stroker. If you stick with the manual trans you should have little driveabilty problems. You'll have more with an auto. Do you have all the chassis and suspension parts to handle just the motor HP? Then spraying a 150-300 shot on top of that equals a serious build. Good luck and it will give you a serious smile when finished. I drove my car around town yesterday on full slicks and skinnies it was a blast.

To be streetable set your goal to say 480-520 RWHP. This would be in a 400-416 stroker. If you stick with the manual trans you should have little driveabilty problems. You'll have more with an auto. Do you have all the chassis and suspension parts to handle just the motor HP? Then spraying a 150-300 shot on top of that equals a serious build. Good luck and it will give you a serious smile when finished. I drove my car around town yesterday on full slicks and skinnies it was a blast.

Yes all of the drivetrain is replaced with upgraded parts and so is the suspension. I have put 620 rwhp to it already and no problems. The trans is good for 1000 hp, driveshaftshop.com shaft good for 1000 hp and the shafts are also rated for 1000 hp.

And driving a fun car around on slicks and skinnies is always fun

I drive it to work sometimes and the only racing I do is drag racing.
as for make me smile nah make me giggle like a little girl probably.

what block is he running???

Not positive....but he had it built the same year I had my 427ci built....2002. So whatever LSx "type" iron block there was back then.

If you're talking about setting it up to strictly drag race....you know with that HP you're talking about an 8 second car, right?

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Not positive....but he had it built the same year I had my 427ci built....2002. So whatever LSx "type" iron block there was back then.

If you're talking about setting it up to strictly drag race....you know with that HP you're talking about an 8 second car, right?

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in an f body it most certainly would be but in a GTO high to mid 9's.. That's the down side of owning a GTO they are heavy ass pigs and have a poor rear axle set up from the factory

What intake do you plan on running. Good luck with the build.

I'm thinking carbed type but injected, soild roller, plate type TB , 2" headers, 4 speed jerico and rev it to 8k+, and boom 600+rwhp. Thats the ticket and possibly my next build. Gotta love NA HP.

Not an LS2, but a very mild build nonetheless. LS7 crate motor, Katech cam, long tubes, Marcella sheetmetal intake and 102 throttle body. The intake and throttle body picked up 60 rwhp. With a little head work, I imagine it would go right on past 600 rwhp, and it drives very, very nice.

http://i125.photobucket.com/albums/p58/edcmat-l1/Cleary.jpg

http://i125.photobucket.com/albums/p58/edcmat-l1/Norway2012.jpg

http://ls1tech.com/forums/dynamometer-results-comparisons/1457270-ls7-katech-cam-marcella-intake-results.html

Not an LS2, but a very mild build nonetheless. LS7 crate motor, Katech cam, long tubes, Marcella sheetmetal intake and 102 throttle body. The intake and throttle body picked up 60 rwhp. With a little head work, I imagine it would go right on past 600 rwhp, and it drives very, very nice.

http://i125.photobucket.com/albums/p58/edcmat-l1/Cleary.jpg

http://i125.photobucket.com/albums/p58/edcmat-l1/Norway2012.jpg

http://ls1tech.com/forums/dynamometer-results-comparisons/1457270-ls7-katech-cam-marcella-intake-results.html

One of your builds? Nice work by who ever.

One of your builds? Nice work by who ever.

Nah. Owner built it himself in his garage. I can only take credit for the tuning.