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Old Feb 19, 2008 | 08:10 PM
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Default 427 lsx
im thinking of getting a lsx 427 but im thinking of running the max bore and having a shorter stroke than most what are some of the problems iu may encounter with this
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Old Feb 19, 2008 | 08:56 PM
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why decrease future ability,4.125 bore 4.00 stroke will get you there with room to spare.
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Old Feb 19, 2008 | 09:00 PM
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well im looking for a higher rev
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Old Feb 19, 2008 | 09:04 PM
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how much power r u making with your lsx and whats your rev limit
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Old Feb 19, 2008 | 09:13 PM
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with the correct parts you can rev a 4'' stroke engine to 9000rpms,i know because i do it quite often,there is no sense in overboring the block
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Old Feb 19, 2008 | 09:46 PM
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would these correct parts cost a shitload though because i have a pretty high spending budget but i dont wanna be just throwing tons of money in
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Old Feb 20, 2008 | 11:31 AM
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all depends on what you are doing with it,fi,n/a how much hp,your valvetrain is where you need to spend the money for high rpms
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Old Feb 20, 2008 | 03:34 PM
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well im shooting for 725 plus horsepower and i plan on having it n/a
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Old Feb 20, 2008 | 04:02 PM
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Originally Posted by bay_kid26
well im shooting for 725 plus horsepower and i plan on having it n/a

May want to look in the dyno section because I have yet to see that out of na 427. I might of missed one though. Good luck hope all works out.
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Old Feb 20, 2008 | 05:15 PM
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Originally Posted by bay_kid26
well im shooting for 725 plus horsepower and i plan on having it n/a


I hope you have a lot of money.
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Old Feb 20, 2008 | 05:24 PM
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You'll be half way to the moon by the time you get done spinning a 427 to a high enough RPM to generate 725+ HP. Solid roller? Check. Some sort of sheet metal intake? Check. Barely enough money left over for PB&J? Double check.
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Old Feb 20, 2008 | 07:12 PM
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well ive been saving a ton of money for awhile and bought my 02 camaro as a salvage and ive already planned on a sheetmetal intake as well solid roller but for awhile ive been debating on sacrificing higher rpms or more stroke and lower rpms but more power
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Old Feb 20, 2008 | 07:27 PM
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you will need to spin it to about 8000rpms for that,you could do it with an eagle crank but you would probably be better with a lunati or callies,put on some nice billet rods and lightweight custom pistons and the bottom end will be fine,for the top end 725 wont be that hard,probably some etp 265's with a nice solid roller and a jesel setup,put on the sheet metal intake and you will be there,but i would keep the 4'' stroke unless you have a car that weighs 2500lbs-torque is still what gets the job done
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Old Feb 20, 2008 | 07:47 PM
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Originally Posted by Shawn @ VA Speed
you will need to spin it to about 8000rpms for that,you could do it with an eagle crank but you would probably be better with a lunati or callies,put on some nice billet rods and lightweight custom pistons and the bottom end will be fine,for the top end 725 wont be that hard,probably some etp 265's with a nice solid roller and a jesel setup,put on the sheet metal intake and you will be there,but i would keep the 4'' stroke unless you have a car that weighs 2500lbs-torque is still what gets the job done
The car would be a track car only with **** for low end torque. It would not be fun on the street at all. If that is what you are building have at it. I really feel you could do better going a different route imo.
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Old Feb 20, 2008 | 07:53 PM
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Looks like you're local. when you get it running we should have a friendly race at the track. my 12k motor vs your how ever too many thousands you end up spending. lol
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Old Feb 20, 2008 | 09:51 PM
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700 should not be a problem for me........
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Old Feb 21, 2008 | 03:44 PM
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Originally Posted by supersub
700 should not be a problem for me........


At the wheels it will be. I really hope you prove us all wrong though. That way I know there is better setups out there for NA cars.
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Old Feb 21, 2008 | 04:22 PM
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Originally Posted by 03 BUSA
At the wheels it will be. I really hope you prove us all wrong though. That way I know there is better setups out there for NA cars.
Agreed 1 million % N/A! Although I believe "supersub" is also running a Maggie...

EDIT: Forgot to qualify that, thanks formula17!
Last edited by Azrael; Feb 21, 2008 at 04:36 PM.
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Old Feb 21, 2008 | 04:28 PM
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I think supersub has a blower so 700 wouldnt be too hard for him.
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Old Feb 21, 2008 | 05:02 PM
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hey jermz how much are you making to the wheel
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