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Largest LS1 bore?

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Old 07-02-2010, 07:27 PM
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Default Largest LS1 bore?
whats the largest bore ls1 can take? how much does Mahle pistons for LS1 costs? I want to build an LS1 like the old school way large bore big cam big heads and carb
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Old 07-02-2010, 07:30 PM
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You cant even bore an LS1, but you can have it resleeved for a few grand.
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Old 07-02-2010, 07:33 PM
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more info's please
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Old 07-02-2010, 07:47 PM
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a ls1 block can be honed out to 3.908,a ls2 block can be bored out to 4.030.go to TSP and look at pistons and blocks.
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Old 07-02-2010, 07:50 PM
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a friend of mine just overhauld his engine and the pistons were Mahle .20 over on LS1 ! Im confused tbh
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Old 07-02-2010, 08:32 PM
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Originally Posted by F-Body Lover
a friend of mine just overhauld his engine and the pistons were Mahle .20 over on LS1 ! Im confused tbh
Then it wasn't an LS1 block.. might have been an iron truck block? An LS2?
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Old 07-02-2010, 08:51 PM
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max hone on an LS1 aluminum block is .010. that is the max limit
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Old 07-02-2010, 09:15 PM
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Originally Posted by Paint_It_Black
Then it wasn't an LS1 block.. might have been an iron truck block? An LS2?
I dont think a 2001 Z28 Camaro came with iron block or LS2's Im pretty sure they were Mahle .020 over pistons
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Old 07-02-2010, 09:23 PM
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Originally Posted by F-Body Lover
I dont think a 2001 Z28 Camaro came with iron block or LS2's Im pretty sure they were Mahle .020 over pistons
If they were off the shelf Mahle's, they were 3.905 which is a .007 overbore.
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Old 07-02-2010, 10:20 PM
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any one know how much your can bore the lq4 iron block
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Old 07-03-2010, 02:43 AM
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Originally Posted by Paint_It_Black
If they were off the shelf Mahle's, they were 3.905 which is a .007 overbore.
Im really confused I cant understand the bores on LS1's what is the stock bore size? 3.89 ? if it was bored .020 wouldnt that make it 3.91 ?
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Old 07-03-2010, 07:19 AM
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Originally Posted by F-Body Lover
Im really confused I cant understand the bores on LS1's what is the stock bore size? 3.89 ? if it was bored .020 wouldnt that make it 3.91 ?
As has been said...You can't bore an alloy LS1, 3 different hone sizes. 3.903, 3.905, 3.908
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Old 07-03-2010, 12:30 PM
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3.908 is the max you can punch out a LS1 before the cylinder walls are to thin.
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Old 07-03-2010, 12:46 PM
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Originally Posted by F-Body Lover
Im really confused I cant understand the bores on LS1's what is the stock bore size? 3.89 ? if it was bored .020 wouldnt that make it 3.91 ?
Stock bore is a 3.898.. basicly a 3.9
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Old 07-04-2010, 02:55 AM
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Grab a calculator & do your math, you will see it doesn't work...nothing to be confused about, cly walls are to thin.
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