What do i bore 5.3L to, so i can make 5.7L?
09-10-2007, 09:40 PM
#1
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What do i bore 5.3L to, so i can make 5.7L? I think Im suppose to bore the 5.3L out to 3.910 is that correct? I know the LS1 is 3.900 but isnt the hole slightly bigger? I have a LS1 alum block but its cracked and wanna transfer everything over to the iron block. Thanks need help asap!
09-11-2007, 02:33 PM
#2
Originally Posted by Mike96z
I think Im suppose to bore the 5.3L out to 3.910 is that correct? I know the LS1 is 3.900 but isnt the hole slightly bigger? I have a LS1 alum block but its cracked and wanna transfer everything over to the iron block. Thanks need help asap!
Not sure about what precautions to take when boring out that much...
09-11-2007, 03:01 PM
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yes it is an iron block, and the cylinders are still stronger than the LS1's, ive seen those steel sleeves crack plenty of times, if you dont go to the 6.0L iron block and wanna stay 5.7, the 5.3 is the best choice and ive seen so many forced induction cars use it.
09-11-2007, 07:33 PM
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well you dont want the hole to be the same size as the cylinder, if i bore it 3.905, the piston will be 3.905 cold, but when it heats it will expand, 2 different metals, if i did it the exact bore then it would seize up and i wasnt talkin about a 3.910 piston, just bore.
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09-12-2007, 06:30 AM
#8
Originally Posted by Mike96z
well you dont want the hole to be the same size as the cylinder, if i bore it 3.905, the piston will be 3.905 cold, but when it heats it will expand, 2 different metals, if i did it the exact bore then it would seize up and i wasnt talkin about a 3.910 piston, just bore.
09-12-2007, 09:59 AM
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I'll be punching my 5.3L out to 3.905 when it goes... I've already dont the research on this and it seems like about the best way to go. tons more piston choices with this bore size...
09-12-2007, 11:10 AM
#12
Originally Posted by Mike96z
alright, wanted to know, you guys may be rite.
EDIT: Usually it's a good idea to hone the block to the piston size once you have the pistons and measure them. Helps with manufacturing defects.
Last edited by Beaflag VonRathburg; 09-12-2007 at 11:28 AM.
