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427 LS2 Fresh Off The Dyno!!!

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Old Jun 23, 2005 | 10:08 AM
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Default 427 LS2 Fresh Off The Dyno!!!

I have just finished our first in-house 427 LS2 Camaro, I will post a graph later tonight.

It has LS6 heads with 2.05 valves, GMP Dry-Sleeve 4.125" LS2 Block, Callies Rods & Crank. Med hydraulic roller (peaked just over 6000),Stock lifters and rockers! 1 3/4 headers, stock SLP catback! 6 speed car.

528RWHP/ 513 RWTQ!! ZERO TRICKS! Many More to Come

It runs and drives like stock! Untill you

Later in the year we will try a 1 7/8 stepped header, morel lifters, roller rockers and more cam!! Must be 25HP left in it.


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Last edited by SLED28; Sep 5, 2005 at 12:40 PM.
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Old Jun 23, 2005 | 10:14 AM
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Awesome numbers!! Already putting the new LS7 to shame ..
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Old Jun 23, 2005 | 10:27 AM
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Outstanding.
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Old Jun 23, 2005 | 11:05 AM
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Originally Posted by Joel_SS
Awesome numbers!! Already putting the new LS7 to shame ..

Put a real cam and a set of headers with a tune on the LS 7 and watch what happens...I bet it is a 100 HP jump..LS 7 heads are bad a$$ and will flow like a ****...
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Old Jun 23, 2005 | 01:13 PM
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Originally Posted by slt200mph
Put a real cam and a set of headers with a tune on the LS 7 and watch what happens...I bet it is a 100 HP jump..LS 7 heads are bad a$$ and will flow like a ****...

A stock LS7 is what 505 brake HP? So RWHP I am going to say about 460 RWHP.. Put your mods on there to get your 100 HP (aggressive IMHO) so now you are turning 560RWHP in the LS7.. let these boys get better headsers on thier motor and some tunning to squeeze the extr HP outta it let say 25hp (like they predicted), the will be turning 553 RWHP.. Only seven behind the LS7 and I bet it is WAY cheaper to build.. GM is gonna try to bend people pver on the LS7 crate motor..
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Old Jun 23, 2005 | 01:22 PM
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Great numbers, but wrong forum
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Old Jun 23, 2005 | 02:01 PM
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Originally Posted by Joel_SS
A stock LS7 is what 505 brake HP? So RWHP I am going to say about 460 RWHP.. Put your mods on there to get your 100 HP (aggressive IMHO) so now you are turning 560RWHP in the LS7.. let these boys get better headsers on thier motor and some tunning to squeeze the extr HP outta it let say 25hp (like they predicted), the will be turning 553 RWHP.. Only seven behind the LS7 and I bet it is WAY cheaper to build.. GM is gonna try to bend people pver on the LS7 crate motor..

I am sorrry sir IMHO you are mistaken...the LS 7's are making around 515-518 HP on the dynos at the Wixon Performance Build Center...Chevy unlike Ford rates their engines very conservitive...you should do a little more home work and see just how good the the LS 7 heads which really are the C6R heads flow...If you think that $13,000 for a LS 7 crate moter is "being bent over" you should see what it will cost to build the same motor..sit down with a calculator and start adding up everything parts and machine work..you will be surprised...not talking about iron block 402's or 408's .. with the high quality of the LS 7 block you do not have the crap shoot with the sleave problems that have been showing up on those sleaved blocks...I am talking about a all alluminum 427 cu. in. with heads that flow like the LS 7 and all the lighweight pieces on the internals w\dry sump lubrication...I think that if you check with people who "know" what they are talking about you will see that few the mods I mentioned will easily put 100 HP more into the motor..not trying to flame you just trying to educate you sir.. Just because you can't afford the motor does not mean that it is not a deal... many people have the opposite opinion than you sir...they think it is a "deal"..

Last edited by slt200mph; Jun 23, 2005 at 03:57 PM.
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Old Jun 23, 2005 | 02:11 PM
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well congrats!!!! its about time we see something out of that fancey new shop .i would love to see some dyno #s print out or maybe bring the car out for a drive to woodbine & 16 ave TIM'S to show us how good it works.
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Old Jun 23, 2005 | 03:31 PM
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Very nice, what are the cam & head specs?
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Old Jun 23, 2005 | 03:33 PM
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FAST LSX90 will add about 15-20rwhp...
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Old Jun 23, 2005 | 03:34 PM
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ls7 motor is a bargain, just imagine that supercharged, turboed or nitroused!!
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Old Jun 23, 2005 | 03:35 PM
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I wish I could find a decent LS2...

All of those old timey hot rodders putting LSx's in their t-buckets are making the prices sour. They are willing to pay anything to put new engines into thier cars. This jacks up prices to us.

Thats my two cents, and what I think is the reason for mark up, but I mean no offense to any-one on the forum. I see thsi trend very similar to the recent B-body price up. Come on, 2.5 million for a Hemi Cuda? ugh...
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Old Jun 25, 2005 | 02:16 PM
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Originally Posted by Joel_SS
Awesome numbers!! Already putting the new LS7 to shame ..
I would never say that!! The ls7 will put anything to shame with the new head design and 2.2 valves 12 deg angle valves.
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Old Jun 26, 2005 | 11:39 AM
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Originally Posted by 52172
I would never say that!! The ls7 will put anything to shame with the new head design and 2.2 valves 12 deg angle valves.
Yea I think its hard to compare LS6 heads w/2.05 valves to LS7 heads with 2.20 valves! The potential in the LS7 is truely incredible, I can't wait to see someone do some serious tuning on one...IMO I don't think 600rwhp is very unlikely...on pump gas...
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Old Jun 26, 2005 | 12:01 PM
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Its like the LS7 has to compete against the C5R stuff...
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Old Jun 26, 2005 | 01:24 PM
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Last edited by STROKER R/T; Jun 27, 2005 at 08:01 AM.
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