General LSX Automobile Discussion Non-technical LSX related topics.

5.3 ????

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Old May 20, 2008 | 02:22 PM
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Default 5.3 ????

im picking a 5.3 motor all there tomorrow for $100 is it a good motor?? is it worth the $100??? or i can get a 6.0 with a 4l80 for a grand... the 5.3 needs new crank bearings. should i get it??? and what all can be done to make it more powerful? like a stroker crank??? or something???
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Old May 20, 2008 | 02:34 PM
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You should be able to bore it out to a 6.0 that is the difference in the blocks. is the bore size. I believe i know they can be bored out to a LS1 bore.
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Old May 20, 2008 | 02:37 PM
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SWEET!!!!! no more ltJUNK... but what else will i need to install this beast when i get it built??? and should i keep my t56 or get an auto?
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Old May 20, 2008 | 03:04 PM
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You can not go 4" bore on a 5.3 block.
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Old May 20, 2008 | 03:07 PM
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thanks for breaking my heart SD... maybe a bigger crank??? im hoping for 500 all motor...
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Old May 20, 2008 | 03:21 PM
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500 to the wheels or to the flywheel?
If you're wanting 500 to the wheels in an all motor 5.7/6.0 you are gonna have to go pretty aggressive with it and it won't be cheap at all.

I'm kinda puzzled as to why you want to get rid of the LT1 for an LS1? Did it **** out or something? Seems like alot of work and money for not alot of gain.

Hell if it was me I'd make the LT1 a 396 stroker and put a blower on it and wave to the N/A lsx cars while you walk them.

just a thought..
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Old May 20, 2008 | 04:39 PM
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lt1 has 120k something all stock and the lsx sounds easier to mod and cheaper... and yes 500 n/a on motor to the wheels
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Old May 20, 2008 | 04:46 PM
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ahh i was wrong.. not a first... I picked up my 6.0 complete for 400 bucks with everything on it. parted it out and made 600 and kept a bunch of stuff. But you could go with a iron ls1 block but would be a little heavy up there for a N/A car.
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Old May 20, 2008 | 04:54 PM
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Originally Posted by MUSTANGBRKR02
ahh i was wrong.. not a first... I picked up my 6.0 complete for 400 bucks with everything on it. parted it out and made 600 and kept a bunch of stuff. But you could go with a iron ls1 block but would be a little heavy up there for a N/A car.
Where would you find an iron LS1 block?

To the OP, you are going to have a fairly severe duty race oriented setup to make 500rwhp with a 5.3, with those goals it would be easier to go with bigger cubes and budget parts than smaller cubes and max effort expensive parts.
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Old May 20, 2008 | 05:00 PM
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idk maybe i can get the 6.0 for a steal then...
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Old May 21, 2008 | 07:30 AM
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Originally Posted by Scoggin Dickey
Where would you find an iron LS1 block?

To the OP, you are going to have a fairly severe duty race oriented setup to make 500rwhp with a 5.3, with those goals it would be easier to go with bigger cubes and budget parts than smaller cubes and max effort expensive parts.

I meant boring the 5.3 bore of 3.77992 Inches to a ls1 bore of 3.9 inches.

Not that they actually made a iron block ls1.

Last edited by MUSTANGBRKR02; May 21, 2008 at 07:41 AM.
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