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help!!!!! i need to drop the comp.what is the stock combustion size of a ls1 head

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Old 03-12-2007, 10:12 PM
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Default help!!!!! i need to drop the comp.what is the stock combustion size of a ls1 head

i want to drop the comp.ratio in a 00 ta.but dont know what the combustion chamber size is on a stock head.please help
Old 03-12-2007, 10:12 PM
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66cc for the ls1
Old 03-12-2007, 10:14 PM
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Originally Posted by fullthrottledan
66cc for the ls1
Dang, you beat me to it...Go with some LQ9 heads and that will put you around 9.5:1 CR...
Old 03-12-2007, 10:29 PM
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you boy are fast in here. i had another thread up for a little while.and no anwser .well this will be my first fbody build so i need all the help i can get.i'm thinking 8.5 to 1 comp for an every day driver.also what is a good system to look into for these cars .what do the stock cranks and conection rods hold up to in these cars.i'm not going to bang on it hard.lookin for around 600rwhp though.i also wanted to know what is the best intake for a turbo car a weind or what.all info will be appreciated.
Old 03-12-2007, 11:04 PM
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Well I will itemize your questions... Remember that many things are merely preference...

1. If you're going turbo 8.5:1 would be about right... BUT if you're going supercharger you need to go around 9:1

2. The stock crank can be reused but you're going to want to go forged aftermarket rods and pistons for reliability... The most common are compstar or eagle rods.

3. The "best" intake has been the LS6 or a carb style with a intake elbow. Don't waist your money on any other. The LS6 has been over 900-1000rwhp and into the 8's...
Old 03-13-2007, 08:59 AM
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i was under the asumption that the weind was a better intake for some reason.but if the ls6 is beter then that is were i'll go.i dont want to have to go through the whole learning experience when it comes to parts.i'll learn from yaws trials and tribulations.

what is the most horsepower the stock fuel system will support.

also how hard would it be to get this car into the 650rwhp area with a single 76 or 88 ,twin 50's,twin 62's
Old 03-13-2007, 09:03 AM
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what is the best system for these cars. single or twin turbo. i know it comes down to prefrence. i know that in most cases the twin system works best on smaller displacement engines.




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