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Whats the MOST NA power seen to date with LS6 heads?Big cube

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Old 07-26-2003, 11:51 AM
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Default Whats the MOST NA power seen to date with LS6 heads?Big cube

Who knows who has the highest dynoing car right now using LS6 heads? Has 550rwhp been reached? Not concerned with cubes? Anything up to 460 Cu in.... Just wanting to see who has the highest LS6 headed dyno #s in the country. custom intakes allowed. Stock PCM.....
Old 07-26-2003, 12:02 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

My Cartek 427 (hydraulic lifters, 11:1 C.R.)made 528 RWHP and 520 RWT through an MN6/3.42 drive train . It's also a very streetable setup.
Old 07-26-2003, 04:38 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

Has anyone made 600RWHP N/A yet.
Old 07-26-2003, 04:49 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

I beleive SW's z07 made 550 rwhp with LS6 intake, LS6 heads MTI 422. new intakes coming out I won't be suprised to see solid roller 42x cube motor dyno well over 550 rwhp say 575-600 range?
Old 07-26-2003, 06:32 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

Futral Motorsports 434ci Solid Roller with a mild cam dyno'd 550rwhp/510rwtq.. The car is very streetable..
Old 07-27-2003, 06:19 AM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

What's the point of a "mild" solid roller cam? I thought solid rollers were used to make revs.
Old 07-27-2003, 09:08 AM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

What's the point of a "mild" solid roller cam? I thought solid rollers were used to make revs.
I think he means mild for a solid. Mild for solid would be big (230ish)for a hyrdraulic. Just my .02.
joel(Bink)
Old 07-27-2003, 09:14 AM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube


We did a few Big engines. We have a 418 with 515rwhp/514rwtq, through the mufflers, with a stock manifold. Also one with 510/508 full exhaust also.
The power flattens out at 6000rpm due to the lack of air flow in the stock manifold. Waiting for the new plastic manifold to see the full power.

It is the intake manifold that stops the power with these big engine set ups.

LG
Old 07-27-2003, 09:48 AM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

I know of one 418ci race engine that did 680hp/520tq corrected on a bhp dyno. Before this fall you'll see some 720's to 740's if the heads can be kept the from lifting.
Old 07-27-2003, 10:00 AM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

Cammin,
Just go ahead and order a big stroker. Then lower the price on your short block and give me a call.
Old 07-27-2003, 05:30 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

details? hehe musta been a sheetmetal intake.
Old 07-27-2003, 08:41 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

The 434ci car had 5.3l heads,stock LS6 intake,12 bolt w\4.10's and stock driveshaft. It was a mild solid to have drivabilty,cust just wanted one
Old 07-27-2003, 09:31 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

The test ride in that car was insane.. It was civil until Allan gave it a little gas..
Old 07-27-2003, 11:55 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

I agree with Joe K., I thnk SAM's 418 solid roller has some wicked numbers out of their car.
Old 07-28-2003, 08:58 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

Very nice

Anyone see a car hit 575-600RWHP

And Alan where are those damn intakes!
Old 07-29-2003, 01:42 AM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

I beleive SW's z07 made 550 rwhp with LS6 intake, LS6 heads MTI 422. new intakes coming out I won't be suprised to see solid roller 42x cube motor dyno well over 550 rwhp say 575-600 range?
SW's car is solid roller.
Old 07-29-2003, 01:41 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

I have a block for sell that comes honed, new hardened Dura-Bond cam bearings, and new ARP main studs. Some people think the dry sleeves are better than the wet sleeves. I called Darton who makes the dry sleeves for Agostino racing and the wet sleeves. The tec said the wet sleeves are far better and can take more abuse, and that the dry sleeves are milled very thin to get a 4.125" bore. He said Darton has been using wet sleeves for years in motors that make over 1000 hp with out any problems. Also with the wet sleeves you get better heat transfer. Morgan Machine Shop are setting the motor up for me. Naturally aspirated cars with 427 CI are running the ¼ mile the low to mid 10's, with NOS there hitting the mid to hi 9's. I would be willing to go 3000 shipped. I would be willing to go 3000 shipped.
Old 07-29-2003, 05:56 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

extremecorvette, get the **** outta my threads. I dont post to give you free advertisement with some joke of a block.
Old 07-29-2003, 06:47 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

I counted 12 threads in "Internal Engine" alone where he posted the same exact reply. That is why there is a "For Sale" section here.
Old 07-29-2003, 09:03 PM
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Default Re: Whats the MOST NA power seen to date with LS6 heads?Big cube

Beat it. Anyone with the BIG NUMBER YET besides the FMS 434 from Alan.

P.S. Alan where are those damn intakes



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