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Looking to do 560-570 whp ls2

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Old Nov 22, 2007 | 09:17 PM
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Default Looking to do 560-570 whp ls2

Is this possible. Looking to start with an ls2 based block and a callies 4" stroke crank. Looking to get compression around 11.4-11.6:1 to run 93 octane. Minor street driving and very little strip. Undecided on head chioce, weather to go with the l92 or ls based head to run a fast 90/90 combo. want to run a healthy cam with a good amount of lope but not completely unstreetable. If you can help please do. Looking to build over winter. This is also in a m6 car. Thanks
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Old Nov 22, 2007 | 09:50 PM
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That would be tough for a street 402 motor. It'd much easier to reach those power levels with a 427. A set of cleaned up LS7s would get you 560-570 easily on a 427.
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Old Nov 22, 2007 | 10:26 PM
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I am working on a 414 Ls2 set up with the l92/L76 heads and intake. strickly Na car and an A4 I probably wont see that high but I would be happy with 480Rwhp
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Old Nov 23, 2007 | 07:23 PM
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Originally Posted by lhaitzss
Is this possible. Looking to start with an ls2 based block and a callies 4" stroke crank. Looking to get compression around 11.4-11.6:1 to run 93 octane. Minor street driving and very little strip. Undecided on head chioce, weather to go with the l92 or ls based head to run a fast 90/90 combo. want to run a healthy cam with a good amount of lope but not completely unstreetable. If you can help please do. Looking to build over winter. This is also in a m6 car. Thanks
Very difficult to get over 550rwhp on a 402ci motor, with a 'streetable' cam.

At minimum, a 427ci, or even better a LS7 based 440ci will likely get you there with good heads and a 'streetable' cam.
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Old Nov 24, 2007 | 01:55 AM
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https://ls1tech.com/forums/dynamometer-results-comparisons/803383-403-ls2-afr-205is-lays-down-550-rwhp.html
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Old Nov 24, 2007 | 06:47 AM
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I have here 408ci from TSP with streetable cam 529whp with M6.

Here's my advice for you, i really don't advice for street race to choose any iron block without any power adder use.
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Old Nov 24, 2007 | 08:22 AM
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http://www.gmhightechperformance.com...rse/index.html
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Old Nov 24, 2007 | 08:33 AM
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I have a 414ci 6.0 iron block. It is a street car and a 6spd. I made 550rwhp 510rwtq using TEA/TFS 235cc heads
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Old Nov 24, 2007 | 04:56 PM
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Sounds like you want dyno numbers.

Tell you what, bring me your car and $2000. 2 weeks later you can pick up the car and I'll provide you with dyno sheets to "prove" your 560-570hp.

You say you don't race, that you barely drive the car. So you must want those numbers just for bragging rights. So I'll hook you up and save you a lot of money in the process.
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Old Nov 24, 2007 | 05:42 PM
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Originally Posted by FraggerCrue
Sounds like you want dyno numbers.

Tell you what, bring me your car and $2000. 2 weeks later you can pick up the car and I'll provide you with dyno sheets to "prove" your 560-570hp.

You say you don't race, that you barely drive the car. So you must want those numbers just for bragging rights. So I'll hook you up and save you a lot of money in the process.
I think 590hp is possible.
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Old Nov 25, 2007 | 07:07 PM
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With a little spray you can. Dont plan on NA though with a 402 and a driveable street motor.
Don't worry about the dyno and just stay within budget and get a good 500 HP and you will be fine.
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Old Nov 26, 2007 | 10:40 PM
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Any thing can be done if you spend the money and have the correct game plan to do it.
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Old Nov 26, 2007 | 10:55 PM
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Check my sig. A4 526rwhp! Iron 408 and love it!
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